diff --git a/.github/workflows/check-urls.yml b/.github/workflows/check-urls.yml
index 253f4315c..16ede5cf7 100644
--- a/.github/workflows/check-urls.yml
+++ b/.github/workflows/check-urls.yml
@@ -42,7 +42,7 @@ jobs:
           fetch-depth: ${{ steps.set-params.outputs.fetch-depth }}
       - name: Get changed files
         id: changed-files
-        uses: tj-actions/changed-files@v45.0.2
+        uses: tj-actions/changed-files@v45.0.3
         with:
           separator: " "
           json: true
diff --git a/books/free-programming-books-bn.md b/books/free-programming-books-bn.md
index dd1d8902c..507ec5895 100644
--- a/books/free-programming-books-bn.md
+++ b/books/free-programming-books-bn.md
@@ -54,6 +54,7 @@
 
 * [বাংলায় মেশিন লার্নিং](https://ml.howtocode.dev) - Manos Kumar Mondol (howtocode.dev)
 * [শূন্য থেকে পাইথন মেশিন লার্নিং: হাতেকলমে সাইকিট-লার্ন](https://raqueeb.gitbook.io/scikit-learn/) - Rakibul Hassan (HTML, [Jupyter Notebook](https://github.com/raqueeb/ml-python)) (gitbook)
+* [হাতেকলমে পাইথন ডীপ লার্নিং](https://rakibul-hassan.gitbook.io/deep-learning) - Rakibul Hassan (gitbook)
 * [হাতেকলমে মেশিন লার্নিং: পরিচিতি, প্রজেক্ট টাইটানিক, আর এবং পাইথনসহ](https://rakibul-hassan.gitbook.io/mlbook-titanic/) - Rakibul Hassan (HTML, [scripts](https://github.com/raqueeb/mltraining)) (gitbook)
 
 
@@ -79,5 +80,5 @@
 
 ### Sql
 
-* [এসকিউএল পরিচিতি(SQL Introduction in Bangla)](https://www.sattacademy.com/sql/sql-intro.php) - Satt Academy
+* [এসকিউএল পরিচিতি(SQL Introduction in Bangla)](https://www.sattacademy.org/sql/index.php) - Satt Academy
 * [বাংলায় SQL টিউটোরিয়াল](https://sql.howtocode.dev) - Saiful, et al.
diff --git a/books/free-programming-books-el.md b/books/free-programming-books-el.md
index 4f9a06d62..bace1eae0 100644
--- a/books/free-programming-books-el.md
+++ b/books/free-programming-books-el.md
@@ -11,7 +11,7 @@
 
 ### C
 
-* [Διαδικαστικός προγραμματισμός](https://repository.kallipos.gr/bitstream/11419/1346/1/00_master%20document_KOY.pdf) - Μαστοροκώστας Πάρις (PDF)
+* [Διαδικαστικός προγραμματισμός](https://repository.kallipos.gr/bitstream/11419/1346/3/00_master%20document_KOY.pdf) - Μαστοροκώστας Πάρις (PDF)
 
 
 ### <a id="cpp"></a>C++
diff --git a/books/free-programming-books-es.md b/books/free-programming-books-es.md
index de5da11bb..dbc653be7 100644
--- a/books/free-programming-books-es.md
+++ b/books/free-programming-books-es.md
@@ -138,6 +138,7 @@
 
 * [Aprenda C++ avanzado como si estuviera en primero](https://web.archive.org/web/20100701020037/http://www.tecnun.es/asignaturas/Informat1/AyudaInf/aprendainf/cpp/avanzado/cppavan.pdf) - Paul Bustamante, Iker Aguinaga, Miguel Aybar, Luis Olaizola, Iñigo Lazcano (PDF)
 * [Aprenda C++ básico como si estuviera en primero](https://web.archive.org/web/20100701020025/http://www.tecnun.es/asignaturas/Informat1/AyudaInf/aprendainf/cpp/basico/cppbasico.pdf) - Paul Bustamante, Iker Aguinaga, Miguel Aybar, Luis Olaizola, Iñigo Lazcano (PDF)
+* [Curso de C++](https://conclase.net/c/curso) - Salvador Pozo (HTML)
 * [Ejercicios de programación creativos y recreativos en C++](http://antares.sip.ucm.es/cpareja/libroCPP/) - Luis Llana, Carlos Gregorio, Raquel Martínez, Pedro Palao, Cristóbal Pareja (HTML)
 
 
@@ -205,13 +206,15 @@
 ### JavaScript
 
 * [El Tutorial de JavaScript Moderno](https://es.javascript.info) - Ilya Kantor, Elizabeth Portilla, joaquinelio, Ezequiel Castellanos, et al. (HTML)
-* [Eloquent JavaScript](https://eloquentjs-es.thedojo.mx) - Marijn Haverbeke, `trl.:` Various (HTML, PDF, EPUB, MOBI)
+* [Eloquent JavaScript (3ra Edición)](https://eloquentjs-es.thedojo.mx) - Marijn Haverbeke, `trl.:` Various (HTML, PDF, EPUB, MOBI)
+* [Eloquent JavaScript (4ta Edición)](https://www.eloquentjavascript.es) - Marijn Haverbeke (HTML, PDF, EPUB, MOBI)
 * [Guía de JavaScript 'Mozilla'](https://developer.mozilla.org/es/docs/Web/JavaScript/Guide) (HTML)
 * [Introducción a AJAX](http://librosweb.es/libro/ajax) - Javier Eguíluz Pérez (HTML) [(PDF)](https://openlibra.com/es/book/download/introduccion-ajax)
 * [Introducción a JavaScript](http://librosweb.es/libro/javascript) - Javier Eguíluz Pérez (HTML) [(PDF)](https://openlibra.com/es/book/download/introduccion-a-javascript)
 * [JavaScript, ¡Inspírate!](https://leanpub.com/javascript-inspirate) - Ulises Gascón González (Leanpub cuenta requerida)
 * [JavaScript Definitivo Vol. I](https://github.com/afuggini/javascript-definitivo-vol1) - Ariel Fuggini (HTML)
 * [JavaScript Para Gatos](https://jsparagatos.com) - Maxwell Ogden, `trl.:` Dan Zajdband (HTML)
+* [Learn JavaScript](https://javascript.sumankunwar.com.np/es) - Suman Kumar, Github Contributors (HTML, PDF)
 * [Manual de JavaScript](https://desarrolloweb.com/manuales/manual-javascript.html#capitulos20) (HTML)
 
 
diff --git a/books/free-programming-books-fr.md b/books/free-programming-books-fr.md
index c21c4298a..b029085e6 100644
--- a/books/free-programming-books-fr.md
+++ b/books/free-programming-books-fr.md
@@ -173,6 +173,7 @@
 ### JavaScript
 
 * [JavaScript Éloquent : Une introduction moderne à la programmation](http://fr.eloquentjavascript.net) - Marijn Haverbeke
+* [Learn JavaScript](https://javascript.sumankunwar.com.np/fr) - Suman Kumar, Github Contributors (HTML, PDF)
 * [Node.Js: Apprendre par la pratique](https://oncletom.io/node.js/#chapitres) - Thomas Parisot
 
 
@@ -196,7 +197,7 @@
 
 #### LaTeX
 
-* [Apprends LaTeX](https://tex.loria.fr/general/apprends-latex.pdf) - Marc Baudoin (PDF)
+* [Apprends LaTeX](http://www.babafou.eu.org/Apprends_LaTeX/Apprends_LaTeX.pdf) - Marc Baudoin (PDF)
 * [LaTeX... pour le prof de maths !](http://math.univ-lyon1.fr/irem/IMG/pdf/LatexPourLeProfDeMaths.pdf) - Arnaud Gazagnes (PDF)
 * [Tout ce que vous avez toujours voulu savoir sur LaTeX sans jamais oser le demander](http://framabook.org/tout-sur-latex/) - Vincent Lozano
 * [(Xe)LaTeX appliqué aux sciences humaines](https://web.archive.org/web/20220121031527/geekographie.maieul.net/95) - Maïeul Rouquette *(:card_file_box: archived)*
diff --git a/books/free-programming-books-hi.md b/books/free-programming-books-hi.md
index 7904e9047..c8deee465 100644
--- a/books/free-programming-books-hi.md
+++ b/books/free-programming-books-hi.md
@@ -44,6 +44,7 @@
 ### JavaScript
 
 * [JavaScript \| Hindi](https://www.tutorialinhindi.com/javascript-tutorial-hindi/) - TutorialinHindi.com
+* [Learn JavaScript \| Hindi](https://javascript.sumankunwar.com.np/np) - Suman Kumar, Github Contributors (HTML, PDF)
 
 
 ### Linux
@@ -61,7 +62,7 @@
 * [ डाटा कयनकेशन एंड कंयटर नेटवक ](https://www.aicte-india.org/sites/default/files/HINDI_BOOKS/BOOK%203.pdf) -  ई.हरश दाधीच, ई.वकास माथर (PDF)
 
 
-### Php
+### PHP
 
-* [Php \| Hindi](https://www.learnhindituts.com/php) - LearnHindiTuts.com
-* [Php Hindi Tutorial \| Hindi](http://tutorialsroot.com/php/index.html) - TutorialsRoot.com
+* [PHP In Hindi Tutorial](http://tutorialsroot.com/php/index.html) - TutorialsRoot.com
+* [PHP Tutorials In Hindi](https://www.learnhindituts.com/php) - LearnHindiTuts.com
diff --git a/books/free-programming-books-id.md b/books/free-programming-books-id.md
index 8e0231bba..e3dca89c6 100644
--- a/books/free-programming-books-id.md
+++ b/books/free-programming-books-id.md
@@ -4,7 +4,6 @@
 * [C](#c)
 * [C#](#csharp)
 * [C++](#cpp)
-* [CodeIgniter](#codeigniter)
 * [Git](#git)
 * [Go](#go)
 * [HTML and CSS](#html-and-css)
@@ -20,9 +19,13 @@
     * [Vue.js](#vuejs)
 * [Node.js](#nodejs)
 * [NoSQL](#nosql)
+* [Pascal](#pascal)
 * [Pemrograman Fungsional](#pemrograman-fungsional)
 * [Pemrograman Kompetitif](#pemrograman-kompetitif)
 * [PHP](#php)
+    * [CodeIgniter](#codeigniter)
+    * [Laravel](#laravel)
+    * [Yii](#yii)
 * [Python](#python)
 * [Rust](#rust)
 * [Solidity](#solidity)
@@ -48,16 +51,7 @@
 ### <a id="cpp"></a>C++
 
 * [Belajar C++ Dasar Bahasa Indonesia](https://github.com/kelasterbuka/CPP_dasar-dasar-programming) - Kelas Terbuka
-
-
-### CodeIgniter
-
-* [Codeigniter - Pendekatan Praktis](https://leanpub.com/codeigniter-pendekatanpraktis) - Ibnu Daqiqil Id (HTML, PDF, EPUB, Kindle) *(Membutuhkan akun Leanpub atau email yang valid)*
-* [Codeigniter Untuk Pemula](https://repository.bsi.ac.id/index.php/unduh/item/176695/Tutorial-Codeigniter-Untuk-Pemula.pdf) - M Fikri Setiadi (PDF)
-* [Framework Codeigniter - Sebuah Panduan dan Best Practice](https://gilacoding.com/upload/file/Tutorial%20framework%20codeigniter.pdf) - Gila Coding (PDF)
-* [Panduan Pengguna CodeIgniter Indonesia](https://codeigniter-id.github.io/user-guide/) - CodeIgniter Indonesia
-* [Tutorial CodeIgniter 3 & 4](https://www.petanikode.com/tutorial/codeigniter/) *(:construction: dalam proses)*
-* [Tutorial CodeIgniter 4](http://mfikri.com/artikel/tutorial-codeigniter4)
+* [Buku Pintar C++ untuk Pemula](https://www.researchgate.net/publication/236687537_Buku_Pintar_C_untuk_Pemula) - Abdul Kadir
 
 
 ### Git
@@ -87,6 +81,7 @@
 * [Bootstrap](https://www.malasngoding.com/category/bootstrap/) - Diki Alfarabi Hadi
 * [Bootstrap 5 : Pengertian, Fitur, Keunggulan dan Cara Menggunakannya](https://www.niagahoster.co.id/blog/tutorial-bootstrap-5/) - Niagahoster (HTML)
 * [Daftar Tutorial Bootstrap 4 Bahasa Indonesia](https://www.bewoksatukosong.com/2019/02/tutorial-bootstrap-4-bahasa-indonesia.html) - Gerald Cahya Prambudi
+* [Tutorial Belajar Framework Bootstrap 5](https://www.duniailkom.com/tutorial-belajar-framework-bootstrap/) - Duniailkom
 
 
 ### IDE and editors
@@ -98,14 +93,17 @@
 ### Java
 
 * [Algoritma dan Struktur Data dengan Java oleh Polinema SIB](https://polinema.gitbook.io/jti-modul-praktikum-algoritma-dan-struktur-data/) - Politeknik Negeri Malang
+* [Buku Pertama Belajar Pemrograman Java untuk Pemula](https://www.researchgate.net/publication/264422101_Buku_Pertama_Belajar_Pemrograman_Java_untuk_Pemula) - Abdul Kadir
 * [Java Desktop](https://github.com/ifnu/buku-java-desktop/raw/master/java-desktop-ifnu-bima.pdf) - Ifnu Bima (PDF)
 * [Memulai Java Enterprise dengan Spring Boot](https://raw.githubusercontent.com/teten-nugraha/free-ebook-springboot-basic/master/Memulai%20Java%20Enterprise%20dengan%20Spring%20Boot.pdf) - Teten Nugraha (PDF)
 * [Pemrograman Java](https://blog.rosihanari.net/download-tutorial-java-se-gratis/) - Rosihan Ari Yuana
+* [Tutorial Belajar Bahasa Pemrograman Java untuk Pemula](https://www.duniailkom.com/tutorial-belajar-bahasa-pemrograman-java-untuk-pemula/) - Duniailkom
 
 
 ### JavaScript
 
 * [Javascript Guide](https://gilacoding.com/upload/file/Javascript%20Guide.pdf) - Desrizal (PDF)
+* [Learn JavaScript](https://javascript.sumankunwar.com.np/id) - Suman Kumar, Github Contributors (HTML, PDF)
 * [Mengenal JavaScript](http://masputih.com/2013/01/ebook-gratis-mengenal-javascript)
 * [Otomatisasi dengan gulp.js](https://kristories.gitbooks.io/otomatisasi-dengan-gulp-js/content/)
 * [Tutorial Dasar Javascript untuk Pemula](https://www.petanikode.com/tutorial/javascript/) *(:construction: dalam proses)*
@@ -133,6 +131,7 @@
 * [Dokumentasi React Bahasa Indonesia](https://id.reactjs.org)
 * [React JS Untuk Pemula](https://masputih.com/2021/05/ebook-gratis-reactjs-untuk-pemula) *(Membutuhkan akun Leanpub atau email yang valid)*
 * [React Redux Tutorial Untuk Pemula](https://medium.com/codeacademia/tutorial-redux-bagian-i-membuat-todo-list-c26a979d0a1f) - Yudi Krisnandi
+* [Tutorial Belajar Library React JS](https://www.duniailkom.com/tutorial-belajar-library-react-js/) - Duniailkom
 * [Tutorial React JS Untuk Pemula (React Hooks)](https://mfikri.com/artikel/reactjs-pemula) - Mfikri
 
 
@@ -166,6 +165,11 @@
 * [MongoDB Untuk Indonesia: Memahami Konsep dan Implementasi MongoDB](https://kristories.gumroad.com/l/mongodb-untuk-indonesia) - Wahyu Kristianto (PDF, email address *requested*, not required)
 
 
+### Pascal
+
+* [Tutorial Belajar Bahasa Pemrograman Python Untuk Pemula](https://www.duniailkom.com/tutorial-belajar-bahasa-pemrograman-pascal-bagi-pemula/) - Duniailkom
+
+
 ### Pemrograman Fungsional
 
 * [Pemrograman Fungsional untuk Rakyat Jelata dengan Scalaz](https://leanpub.com/fpmortals-id/read) (HTML)
@@ -179,10 +183,8 @@
 
 ### PHP
 
-* [Belajar Laravel Untuk Pemula](https://gilacoding.com/upload/file/Belajar%20Laravel%20Untuk%20Pemula.pdf) - Dadan Hamdani (PDF)
 * [Belajar PHP Dasar](https://www.malasngoding.com/belajar-php-dasar-pengenalan-dan-kegunaan-php/) - Malasngoding
 * [Membuat Bot Telegram dengan PHP](https://www.slideshare.net/HasanudinHS/ebook-i-membuat-bot-telegram-dengan-php) - Hasanudin H Syafaat (PDF)
-* [Menjelajahi Yii Framework](https://gilacoding.com/upload/file/menjelajahyiiframework.pdf) - Sabit Huraira (PDF)
 * [Panduan Lengkap PHP AJAX jQuery](https://gilacoding.com/upload/file/Panduan%20Lengkap%20PHP%20Ajax%20jQuery.pdf) - Desrizal (PDF)
 * [Pemrograman Berbasis Objek Modern dengan PHP](https://arsiteknologi.com/wp-content/uploads/Pemrograman_Berbasis_Objek_Modern_dengan_PHP_Google_Play_Book.pdf) - Muhamad Surya Iksanudin (PDF)
 * [Pemrograman Berorientasi Objek Dengan PHP5](https://endangcahyapermana.files.wordpress.com/2016/03/belajar-singkat-pemrograman-berorientasi-objek-dengan-php5.pdf) - Gerry Sabar (PDF)
@@ -194,15 +196,39 @@
 * [Tutorial Pemrograman PHP untuk Pemula](https://www.petanikode.com/tutorial/php) - Ahmad Muhardian (Petani Kode) *(:construction: dalam proses)*
 
 
+#### CodeIgniter
+
+* [Codeigniter - Pendekatan Praktis](https://leanpub.com/codeigniter-pendekatanpraktis) - Ibnu Daqiqil Id (HTML, PDF, EPUB, Kindle) *(Membutuhkan akun Leanpub atau email yang valid)*
+* [Codeigniter Untuk Pemula](https://repository.bsi.ac.id/index.php/unduh/item/176695/Tutorial-Codeigniter-Untuk-Pemula.pdf) - M Fikri Setiadi (PDF)
+* [Framework Codeigniter - Sebuah Panduan dan Best Practice](https://gilacoding.com/upload/file/Tutorial%20framework%20codeigniter.pdf) - Gila Coding (PDF)
+* [Panduan Pengguna CodeIgniter Indonesia](https://codeigniter-id.github.io/user-guide/) - CodeIgniter Indonesia
+* [Tutorial CodeIgniter 3 & 4](https://www.petanikode.com/tutorial/codeigniter/) *(:construction: dalam proses)*
+* [Tutorial CodeIgniter 4](http://mfikri.com/artikel/tutorial-codeigniter4)
+
+
+#### Laravel
+
+* [Belajar Laravel Untuk Pemula](https://gilacoding.com/upload/file/Belajar%20Laravel%20Untuk%20Pemula.pdf) - Dadan Hamdani (PDF)
+* [Tutorial Belajar Framework Laravel 10](https://www.duniailkom.com/tutorial-belajar-framework-laravel/) - Duniailkom
+
+
+#### Yii
+
+* [Menjelajahi Yii Framework](https://gilacoding.com/upload/file/menjelajahyiiframework.pdf) - Sabit Huraira (PDF)
+* [Panduan Definitif Untuk Yii 2.0](https://www.yiiframework.com/doc/download/yii-guide-2.0-id.pdf) - Yii Software (PDF)
+
+
 ### Python
 
 * [Belajar Python](http://www.belajarpython.com)
 * [Cepat Mahir Python](https://gilacoding.com/upload/file/Python.pdf) - Hendri, `edt.:` Romi Satria Wahono (PDF)
+* [Dasar-Dasar Python: Panduan Cepat untuk Memahami Fondasi Pemrograman Python](https://www.researchgate.net/publication/361459389_Dasar-Dasar_Python_Panduan_Cepat_untuk_Memahami_Fondasi_Pemrograman_Python) - Abdul Kadir
 * [Dasar Pengenalan Pemrograman Python](https://play.google.com/store/books/details/Rolly_Maulana_Awangga_Dasar_dasar_Python?id=YpzDDwAAQBAJ) - Rolly Maulana AwanggaRayhan *(Membutuhkan akun Google Play Books atau email yang valid)*
 * [Kursus Singkat Machine Learning dengan TensorFlow API](https://developers.google.com/machine-learning/crash-course?hl=id)
 * [Python Untuk Pemula](https://santrikoding.com/ebook/python-untuk-pemula) - Rizqi Maulana
 * [Tutorial Dasar Pemrograman Python](https://www.petanikode.com/tutorial/python/) - Petani Kode, Ahmad Muhardian
 * [Tutorial Python](https://docs.python.org/id/3.8/tutorial/)
+* [Tutorial Python untuk Pemula](https://www.kevintekno.com/p/tutorial-python-untuk-pemula.html) - Kevin Tekno, Kevin Alfito
 * [Workshop Python 101](http://sakti.github.io/python101/)
 
 
diff --git a/books/free-programming-books-ko.md b/books/free-programming-books-ko.md
index 07ca31bfc..9349e1fd1 100644
--- a/books/free-programming-books-ko.md
+++ b/books/free-programming-books-ko.md
@@ -146,7 +146,9 @@
 
 ### Machine Learning
 
-[Pytorch로 시작하는 딥 러닝 입문](https://wikidocs.net/book/2788) - 유원준, 상준
+* [<랭체인LangChain 노트> - LangChain 한국어 튜토리얼](https://wikidocs.net/book/14314) - 테디노트
+* [딥 러닝을 이용한 자연어 처리 입문](https://wikidocs.net/book/2155) - 유원준, 상준
+* [Pytorch로 시작하는 딥 러닝 입문](https://wikidocs.net/book/2788) - 유원준, 상준
 
 
 ### Mathematics
@@ -237,8 +239,13 @@
 
 ### Rust
 
-* [러스트 프로그래밍 언어](https://rinthel.github.io/rust-lang-book-ko/) - 스티브 클라브닉, 캐롤 니콜스 (HTML) *(:construction: in process)*
-* [Rust by Example](https://hanbum.gitbooks.io/rustbyexample/content/) *(:construction: in process)*
+* [러스트 코딩인사이트](https://coding-insight.com/docs/category/rust)
+* [러스트 프로그래밍 언어](https://rinthel.github.io/rust-lang-book-ko/) - 스티브 클라브닉, 캐롤 니콜스
+* [예제로 배우는 Rust 프로그래밍](http://rust-lang.xyz)
+* [파이썬과 비교하며 배우는 러스트 프로그래밍](https://indosaram.github.io/rust-python-book/) - 윤인도
+* [Comprehensive Rust](https://google.github.io/comprehensive-rust/ko/index.html)
+* [Rust로 첫 번째 단계 수행](https://learn.microsoft.com/ko-kr/training/paths/rust-first-steps) - 마이크로소프트에서 제공하는 러스트 강의
+* [The Rust Programming Language](https://doc.rust-kr.org/title-page.html)
 
 
 ### Scratch
diff --git a/books/free-programming-books-langs.md b/books/free-programming-books-langs.md
index ff84ca97c..9dbc3fb29 100644
--- a/books/free-programming-books-langs.md
+++ b/books/free-programming-books-langs.md
@@ -162,6 +162,7 @@ Books on general-purpose programming that don't focus on a specific language are
     * [Drupal](#drupal)
     * [Laravel](#laravel)
     * [Symfony](#symfony)
+    * [Yii](#yii)
     * [Zend](#zend)
 * [PostgreSQL](#postgresql)
 * [PowerShell](#powershell)
@@ -173,6 +174,7 @@ Books on general-purpose programming that don't focus on a specific language are
     * [Django](#django)
     * [Flask](#flask)
     * [Kivy](#kivy)
+    * [Numpy](#numpy)
     * [Pandas](#pandas)
     * [PyOpenCl](#pyopencl)
     * [Pyramid](#pyramid)
@@ -240,7 +242,7 @@ Books on general-purpose programming that don't focus on a specific language are
 
 * [A Guide to Ada for C and C++ Programmers](http://www.cs.uni.edu/~mccormic/4740/guide-c2ada.pdf) (PDF)
 * [Ada Distilled](http://www.adapower.com/pdfs/AdaDistilled07-27-2003.pdf) (PDF)
-* [Ada for the C++ or Java Developer](https://www.adacore.com/uploads/books/pdf/Ada_for_the_C_or_Java_Developer-cc.pdf) - Quentin Ochem (PDF)
+* [Ada for the C++ or Java Developer](https://www.adacore.com/uploads/books/pdf/Ada_for_the_C_or_Java_Developer-cc.pdf) - Quentin Ochem (PDF) (CC BY-NC-SA)
 * [Ada Programming](https://en.wikibooks.org/wiki/Ada_Programming) - Wikibooks
 * [Ada Reference Manual - ISO/IEC 8652:2012(E) Language and Standard Libraries](http://www.ada-auth.org/standards/12rm/RM-Final.pdf) (PDF)
 * [Introduction To Ada](https://learn.adacore.com/courses/intro-to-ada/index.html)
@@ -299,7 +301,7 @@ Books on general-purpose programming that don't focus on a specific language are
 * [Introduction to Arduino](http://playground.arduino.cc/Main/ManualsAndCurriculum)
 * [Introduction to Arduino : A piece of cake!](http://www.introtoarduino.com) - Alan G. Smith
 * [Learn Arduino](https://riptutorial.com/Download/arduino.pdf) - Compiled from StackOverflow documentation (PDF)
-* [Open softwear - Fashionable prototyping and wearable computing using the Arduino](https://softwear.cc/book/files/Open_Softwear-beta090712.pdf) - Tony Olsson, David Gaetano, Jonas Odhner, Samson Wiklund (PDF)
+* [Open softwear - Fashionable prototyping and wearable computing using the Arduino](https://softwear.cc/book/files/Open_Softwear-beta090712.pdf) - Tony Olsson, David Gaetano, Jonas Odhner, Samson Wiklund (PDF) (CC BY-NC-ND)
 
 
 ### ASP.NET
@@ -353,7 +355,7 @@ Books on general-purpose programming that don't focus on a specific language are
 * [Easy 6502](http://skilldrick.github.io/easy6502/) - Nick Morgan
 * [Machine Language for Beginners](https://archive.org/details/ataribooks-machine-language-for-beginners) - Richard Mansfield
 * [MIPS Assembly Language Programming Using QtSpim](http://www.egr.unlv.edu/~ed/MIPStextSMv11.pdf) - Ed Jorgensen (PDF)
-* [Programmed Introduction to MIPS Assembly Language](http://chortle.ccsu.edu/AssemblyTutorial/index.html)
+* [Programmed Introduction to MIPS Assembly Language](http://chortle.ccsu.edu/AssemblyTutorial/index.html) (CC BY-NC)
 * [The Second Book of Machine Language](http://www.atariarchives.org/2bml/)
 
 
@@ -512,14 +514,15 @@ Books on general-purpose programming that don't focus on a specific language are
 
 ### <a id="cpp"></a>C++
 
-* [A Complete Guide to Standard C++ Algorithms](https://github.com/HappyCerberus/book-cpp-algorithms) - Šimon Tóth (PDF, LaTeX) *(:construction: in process)*
+* [A Complete Guide to Standard C++ Algorithms](https://github.com/HappyCerberus/book-cpp-algorithms) - Šimon Tóth (PDF, LaTeX) (CC BY-NC-SA) *(:construction: in process)*
 * [An Introduction to the USA Computing Olympiad, C++ Edition](https://darrenyao.com/usacobook/cpp.pdf) - Darren Yao (PDF)
 * [C++ Annotations](https://fbb-git.gitlab.io/cppannotations/) - Frank B. Brokken (HTML, PDF)
+* [C++ Coding Standard](https://possibility.com/Cpp/CppCodingStandard.html) - Todd Hoff (HTML, PDF)
 * [C++ Core Guidelines](https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md) - `edt.:` Bjarne Stroustrup, Herb Sutter
 * [C++ For Programmers](https://tfetimes.com/wp-content/uploads/2015/04/c-for-c-programmers.pdf) - JT Kalnay (PDF)
 * [C++ GUI Programming With Qt 3](https://ptgmedia.pearsoncmg.com/images/0131240722/downloads/blanchette_book.pdf) - Jasmin Blanchette, Mark Summerfield (PDF)
-* [C++ Language](http://www.cplusplus.com/doc/tutorial/)
-* [C++ Notes for Professionals](https://goalkicker.com/CPlusPlusBook) - Compiled from StackOverflow Documentation (PDF)
+* [C++ Language](http://www.cplusplus.com/doc/tutorial/) (HTML)
+* [C++ Notes for Professionals](https://goalkicker.com/CPlusPlusBook) - Compiled from StackOverflow Documentation (PDF) (CC BY-SA)
 * [C++ Programming](https://en.wikibooks.org/wiki/C%2B%2B_Programming) - Panic, et al.
 * [C++ Programming: Code patterns design](https://en.wikibooks.org/wiki/C%2B%2B_Programming/Code/Design_Patterns) - WikiBooks (HTML)
 * [C++ Succinctly, Syncfusion](https://www.syncfusion.com/resources/techportal/ebooks/cplusplus) (PDF, Kindle) (email address *requested*, not required)
@@ -527,7 +530,7 @@ Books on general-purpose programming that don't focus on a specific language are
 * [C++ Tutorial](https://www.cprogramming.com/tutorial/c++-tutorial.html) - Alex Allain
 * [CS106X Programming Abstractions in C++](http://web.stanford.edu/class/cs106x/)
 * [Elements of Programming](http://elementsofprogramming.com) - Alexander Stepanov, Paul McJones (PDF)
-* [Essential C++](https://www.programming-books.io/essential/cpp/) - Krzysztof Kowalczyk, StackOverflow Contributors
+* [Essential C++](https://www.programming-books.io/essential/cpp/) - Krzysztof Kowalczyk, StackOverflow Contributors (CC BY-SA)
 * [Financial Numerical Recipes in C++](https://ba-odegaard.no/gcc_prog/recipes/) - Bernt Arne Ødegaard (PDF)
 * [Fundamentals of C++ Programming](https://web.archive.org/web/20191005170118/https://python.cs.southern.edu/cppbook/progcpp.pdf) - Richard L. Halterman (PDF) *(:card_file_box: archived)*
 * [Game Programming Patterns](http://gameprogrammingpatterns.com/contents.html) (HTML)
@@ -541,7 +544,7 @@ Books on general-purpose programming that don't focus on a specific language are
 * [LearnCpp.com](https://www.learncpp.com) (HTML)
 * [Learning C++ eBook](https://riptutorial.com/Download/cplusplus.pdf) - Compiled from StackOverflow Documentation (PDF)
 * [Matters Computational: Ideas, Algorithms, Source Code](http://www.jjj.de/fxt/fxtbook.pdf) - Jorg Arndt (PDF)
-* [Modern C++ Tutorial: C++11/14/17/20 On the Fly](https://www.changkun.de/modern-cpp/pdf/modern-cpp-tutorial-en-us.pdf) - Changkun Ou (PDF)
+* [Modern C++ Tutorial: C++11/14/17/20 On the Fly](https://www.changkun.de/modern-cpp/pdf/modern-cpp-tutorial-en-us.pdf) - Changkun Ou (PDF) (CC BY-NC-ND)
 * [More C++ Idioms](https://en.wikibooks.org/wiki/More_C%2B%2B_Idioms) - Sumant Tambe, et al. (WikiBooks)
 * [Open Data Structures (In C++)](http://opendatastructures.org/ods-cpp.pdf) - Pat Morin (PDF)
 * [Programming Fundamentals - A Modular Structured Approach using C++](https://archive.org/details/cnx-org-col10621/mode/1up) - Kenneth Leroy Busbee (PDF)
@@ -806,12 +809,12 @@ Books on general-purpose programming that don't focus on a specific language are
 ### Go
 
 * [An Introduction to Programming in Go](https://www.golang-book.com/books/intro) - Caleb Doxsey
-* [Build Web Application with Golang](https://astaxie.gitbooks.io/build-web-application-with-golang/content/en/) - astaxie
+* [Build Web Application with Golang](https://astaxie.gitbooks.io/build-web-application-with-golang/content/en/) - astaxie (CC BY-SA)
 * [Building Web Apps with Go](https://codegangsta.gitbooks.io/building-web-apps-with-go/content/)
 * [Darker Corners of Go](https://rytisbiel.com/2021/03/06/darker-corners-of-go/) - Rytis Bieliunas
 * [Effective Go](https://golang.org/doc/effective_go.html)
-* [Essential Go](https://www.programming-books.io/essential/go/) - Krzysztof Kowalczyk, StackOverflow Contributors
-* [Essentials of Go Programming](https://essentials-of-go-programming.readthedocs.io) - Baiju Muthukadan (HTML)
+* [Essential Go](https://www.programming-books.io/essential/go/) - Krzysztof Kowalczyk, StackOverflow Contributors (CC BY-SA)
+* [Essentials of Go Programming](https://essentials-of-go-programming.readthedocs.io) - Baiju Muthukadan (HTML) (CC BY-SA)
 * [Gin Web Framework](https://chenyitian.gitbooks.io/gin-web-framework/content/)
 * [Go 101](https://go101.org/article/101.html) - [@TapirLiu](https://twitter.com/TapirLiu)
 * [Go by Example](https://gobyexample.com)
@@ -826,24 +829,24 @@ Books on general-purpose programming that don't focus on a specific language are
 * [How To Code in Go](https://www.digitalocean.com/community/books/how-to-code-in-go-ebook) - Mark Bates, Cory Lanou, Timothy J. Raymond (PDF, EPUB)
 * [Learn Go in Y minutes](https://learnxinyminutes.com/docs/go/)
 * [Learn Go with Tests](https://quii.gitbook.io/learn-go-with-tests/) - Chris James
-* [Learning Go](https://miek.nl/go/)
-* [Let's learn Go!](http://go-book.readthedocs.io/en/latest/)
+* [Learning Go](https://miek.nl/go/) (CC BY-NC-SA)
+* [Let's learn Go!](http://go-book.readthedocs.io/en/latest/) (CC BY-NC-SA)
 * [Practical Cryptography With Go](https://leanpub.com/gocrypto/read) - Kyle Isom
 * [Practical Go Lessons](https://www.practical-go-lessons.com) - Maximilien Andile
 * [Practical Go: Real world advice for writing maintainable Go programs](https://dave.cheney.net/practical-go/presentations/qcon-china.html) - Dave Cheney (HTML)
 * [Production Go](https://leanpub.com/productiongo/read) - Herman Schaaf and Shawn Smith (EPUB, HTML, PDF) (:construction: *in process*) *(Leanpub account or valid email requested for EPUB or PDF)*
 * [The Go Tutorial](http://tour.golang.org)
-* [The Little Go Book](https://github.com/karlseguin/the-little-go-book) - Karl Seguin ([PDF](https://www.openmymind.net/assets/go/go.pdf), [ePUB](https://www.openmymind.net/assets/go/go.epub))
-* [Web apps in Go, the anti textbook](https://github.com/thewhitetulip/web-dev-golang-anti-textbook/)
+* [The Little Go Book](https://github.com/karlseguin/the-little-go-book) - Karl Seguin ([PDF](https://www.openmymind.net/assets/go/go.pdf), [ePUB](https://www.openmymind.net/assets/go/go.epub)) (CC BY-NC-SA)
+* [Web apps in Go, the anti textbook](https://github.com/thewhitetulip/web-dev-golang-anti-textbook/) (CC BY-SA)
 
 
 ### Graphs
 
 #### GraphQL
 
-* [Fullstack GraphQL](https://github.com/GraphQLCollege/fullstack-graphql)
+* [Fullstack GraphQL](https://github.com/GraphQLCollege/fullstack-graphql) (CC BY-NC-SA)
 * [GraphQL or Bust](https://nordicapis.com/wp-content/uploads/GraphQL-or-Bust-v2.2.pdf) - Nordic APIs (PDF)
-* [Learning graphqL](https://riptutorial.com/Download/graphql.pdf) - Compiled from StackOverflow Documentation (PDF)
+* [Learning graphqL](https://riptutorial.com/Download/graphql.pdf) - Compiled from StackOverflow Documentation (PDF)  (CC BY-SA)
 
 
 #### Gremlin
@@ -866,7 +869,7 @@ Books on general-purpose programming that don't focus on a specific language are
 
 * [Building Java Projects with Gradle](http://spring.io/guides/gs/gradle/)
 * [Gradle Succinctly](https://www.syncfusion.com/ebooks/gradle_succinctly) - José Roberto Olivas Mendoza
-* [Gradle User Guide](https://docs.gradle.org/current/userguide/userguide.html) - Hans Dockter, Adam Murdoch ([PDF](https://docs.gradle.org/current/userguide/userguide.pdf))
+* [Gradle User Guide](https://docs.gradle.org/current/userguide/userguide.html) - Hans Dockter, Adam Murdoch ([PDF](https://docs.gradle.org/current/userguide/userguide.pdf)) (CC BY-NC-SA)
 
 
 #### Grails
@@ -892,7 +895,7 @@ Books on general-purpose programming that don't focus on a specific language are
 * [Cloudera Impala](https://docs.cloudera.com/documentation/enterprise/latest/PDF/cloudera-impala.pdf) - John Russel (PDF)
 * [Data-Intensive Text Processing with MapReduce](http://lintool.github.io/MapReduceAlgorithms/MapReduce-book-final.pdf) (Jimmy Lin and Chris Dyer) (PDF)
 * [Hadoop for Windows Succinctly](https://www.syncfusion.com/ebooks/hadoop-for-windows-succinctly) - Dave Vickers
-* [Hadoop Illuminated](http://hadoopilluminated.com/index.html) - Mark Kerzner, Sujee Maniyam
+* [Hadoop Illuminated](http://hadoopilluminated.com/index.html) - Mark Kerzner, Sujee Maniyam (CC BY-NC-SA)
 
 
 ### Haskell
@@ -988,6 +991,7 @@ Books on general-purpose programming that don't focus on a specific language are
 
 #### Bootstrap
 
+* [Bootstrap 4 Quick Start Book](https://bootstrapclasses.com/shop/bootstrap-quick-start) - Jacob Lett (PDF, EPUB, MOBI)
 * [Twitter Bootstrap 3 Succinctly](https://www.syncfusion.com/resources/techportal/details/ebooks/twitterbootstrap3) - Peter Shaw
 * [Twitter Bootstrap 4 Succinctly](https://www.syncfusion.com/ebooks/twitterbootstrap4-succinctly) - Peter Shaw
 * [Twitter Bootstrap Succinctly](https://www.syncfusion.com/resources/techportal/details/ebooks/twitterbootstrap) - Peter Shaw
@@ -1133,7 +1137,7 @@ Books on general-purpose programming that don't focus on a specific language are
 * [Airbnb JavaScript Style Guide](https://airbnb.io/javascript/) - Airbnb (HTML)
 * [Basic JavaScript for the impatient programmer](http://www.2ality.com/2013/06/basic-javascript.html) - Axel Rauschmayer (HTML)
 * [Bible of JS](https://sheryians.com/download/bibleofjs_by_sheryians) - Harsh Sharma, Sheryians Coding School
-* [Book of Modern Frontend Tooling](https://github.com/tooling/book-of-modern-frontend-tooling) - Various (HTML)
+* [Book of Modern Frontend Tooling](https://github.com/tooling/book-of-modern-frontend-tooling) - Various (HTML) (CC BY-NC)
 * [Building Front-End Web Apps with Plain JavaScript](https://web-engineering.info/JsFrontendApp-Book) - Gerd Wagner (HTML,PDF)
 * [Clean Code JavaScript](https://github.com/ryanmcdermott/clean-code-javascript) - Ryan McDermott (HTML)
 * [Crockford's JavaScript](http://www.crockford.com/javascript/) - Douglas Crockford (HTML)
@@ -1141,7 +1145,7 @@ Books on general-purpose programming that don't focus on a specific language are
 * [Designing Scalable JavaScript Applications](https://www.manning.com/books/designing-scalable-javascript-applications) - Emmit Scott (PDF+livebook)
 * [Dev Docs](https://devdocs.io/javascript/) - Various (HTML)
 * [DOM Enlightenment](https://frontendmasters.com/guides/javascript-enlightenment/) - Cody Linley
-* [Eloquent JavaScript 3rd edition](http://eloquentjavascript.net) - Marijn Haverbeke (HTML, PDF, EPUB, MOBI)
+* [Eloquent JavaScript 3rd edition](http://eloquentjavascript.net) - Marijn Haverbeke (HTML, PDF, EPUB, MOBI) (CC BY-NC)
 * [Essential Javascript](https://www.programming-books.io/essential/javascript/) - Krzysztof Kowalczyk, StackOverflow Contributors
 * [Exploring ES6](http://exploringjs.com/es6/) - Axel Rauschmayer (HTML)
 * [Functional-Light JavaScript](https://github.com/getify/Functional-Light-JS) - Kyle Simpson (HTML)
@@ -1171,6 +1175,7 @@ Books on general-purpose programming that don't focus on a specific language are
 * [JavaScript with Classes](https://diogoeichert.github.io/JSwC.epub) - Diogo Eichert (EPUB)
 * [JS Robots](https://web.archive.org/web/20201029045339/http://markdaggett.com/images/ExpertJavaScript-ch6.pdf) - Mark Daggett (PDF) *(:card_file_box: archived)*
 * [Leaflet Tips and Tricks: Interactive Maps Made Easy](https://leanpub.com/leaflet-tips-and-tricks/read) - Malcolm Maclean (HTML)
+* [Learn JavaScript](https://javascript.sumankunwar.com.np/en) - Suman Kumar, Github Contributors (HTML, PDF)
 * [Learning JavaScript Design Patterns](http://addyosmani.com/resources/essentialjsdesignpatterns/book/) - Addy Osmani (HTML)
 * [Let's Learn ES6](https://bubblin.io/book/let-s-learn-es6-by-ryan-christiani#frontmatter) - Ryan Christiani (Superbook format)
 * [Managing Space and Time with JavaScript - Book 1: The Basics](http://www.noelrappin.com) - Noel Rappin (dead link)
@@ -1301,7 +1306,7 @@ Books on general-purpose programming that don't focus on a specific language are
 
 #### Meteor
 
-* [Your First Meteor Application, A Complete Beginner’s Guide to the Meteor JavaScript Framework](http://meteortips.com/book/)
+* [Your First Meteor Application, A Complete Beginner’s Guide to the Meteor JavaScript Framework](https://web.archive.org/web/20230815173101/http://meteortips.com/first-meteor-tutorial/) (HTML) *(:card_file_box: archived)*
 
 
 #### Next.js
@@ -1416,31 +1421,31 @@ Books on general-purpose programming that don't focus on a specific language are
 ### Jenkins
 
 * [Jenkins Starter Guide Ebook](https://bugfender.com/wp-content/themes/bugfender-wordpress-theme/assets/docs/Jenkins-Starter-Guide-Ebook.pdf) (PDF)
-* [Jenkins: The Definitive Guide](http://www.bogotobogo.com/DevOps/Jenkins/images/Intro_install/jenkins-the-definitive-guide.pdf) (PDF)
+* [Jenkins: The Definitive Guide](http://www.bogotobogo.com/DevOps/Jenkins/images/Intro_install/jenkins-the-definitive-guide.pdf) (PDF) (CC BY-NC-ND)
 * [Jenkins User Handbook](https://www.jenkins.io/user-handbook.pdf) (PDF)
-* [Learning Jenkins](https://riptutorial.com/Download/jenkins.pdf) Compiled from StackOverflow Documentation (PDF)
+* [Learning Jenkins](https://riptutorial.com/Download/jenkins.pdf) Compiled from StackOverflow Documentation (PDF) (CC BY-SA)
 
 
 ### Julia
 
-* [Introducing Julia](https://en.wikibooks.org/wiki/Introducing_Julia) - Wikibooks
+* [Introducing Julia](https://en.wikibooks.org/wiki/Introducing_Julia) - Wikibooks (CC BY-SA)
 * [Julia by Example](http://samuelcolvin.github.io/JuliaByExample) - Samuel Colvin (GitHub repo)
-* [Julia Data Science](https://juliadatascience.io) - Jose Storopoli, Rik Huijzer, Lazaro Alonso
+* [Julia Data Science](https://juliadatascience.io) - Jose Storopoli, Rik Huijzer, Lazaro Alonso (CC BY-NC-SA)
 * [Julia language: a concise tutorial](https://syl1.gitbook.io/julia-language-a-concise-tutorial) - Antonello Lobianco (GitBook)
-* [Learn Julia in Y minutes](https://learnxinyminutes.com/docs/julia) - Leah Hanson
-* [Quantitative Economics with Julia](https://julia.quantecon.org) - Jesse Perla, Thomas J. Sargent, John Stachurski (HTML, [PDF](https://web.archive.org/web/20210713122108/https://julia.quantecon.org/_downloads/pdf/quantitative_economics_with_julia.pdf)) *(:card_file_box: archived)*
+* [Learn Julia in Y minutes](https://learnxinyminutes.com/docs/julia) - Leah Hanson (CC BY-SA)
+* [Quantitative Economics with Julia](https://julia.quantecon.org) - Jesse Perla, Thomas J. Sargent, John Stachurski (HTML, [PDF](https://web.archive.org/web/20210713122108/https://julia.quantecon.org/_downloads/pdf/quantitative_economics_with_julia.pdf)) *(:card_file_box: archived)* (CC BY-SA)
 * [The Julia Express](http://bogumilkaminski.pl/files/julia_express.pdf) - Bogumił Kamiński (PDF)
-* [Think Julia](https://benlauwens.github.io/ThinkJulia.jl/latest/book.html) - Ben Lauwens, Allen Downey (GitBook)
+* [Think Julia](https://benlauwens.github.io/ThinkJulia.jl/latest/book.html) - Ben Lauwens, Allen Downey (GitBook) (CC BY-NC)
 
 
 ### Kotlin
 
-* [Essential Kotlin](https://www.programming-books.io/essential/kotlin/) - Krzysztof Kowalczyk, StackOverflow Contributors
-* [Kotlin Notes for Professionals](https://goalkicker.com/KotlinBook/) - Compiled from StackOverflow documentation (PDF)
+* [Essential Kotlin](https://www.programming-books.io/essential/kotlin/) - Krzysztof Kowalczyk, StackOverflow Contributors (CC BY-SA)
+* [Kotlin Notes for Professionals](https://goalkicker.com/KotlinBook/) - Compiled from StackOverflow documentation (PDF) (CC BY-SA)
 * [Kotlin Official Documentation](https://kotlinlang.org/docs/reference/)
-* [Kotlin Quick Reference](https://kotlin-quick-reference.com) - Alvin Alexander (gitbook)
+* [Kotlin Quick Reference](https://kotlin-quick-reference.com) - Alvin Alexander (gitbook) (CC BY-SA)
 * [Learn Kotlin Programming](https://www.programiz.com/kotlin-programming) - Programiz
-* [Learning Kotlin](https://riptutorial.com/Download/kotlin.pdf) - Compiled from StackOverflow Documentation (PDF)
+* [Learning Kotlin](https://riptutorial.com/Download/kotlin.pdf) - Compiled from StackOverflow Documentation (PDF) (CC BY-SA)
 
 
 ### LaTeX / TeX
@@ -1481,6 +1486,7 @@ Books on general-purpose programming that don't focus on a specific language are
 * [Getting Started with Ubuntu](http://ubuntu-manual.org)
 * [GNU Autoconf, Automake and Libtool](http://www.sourceware.org/autobook/download.html)
 * [Hardened Linux From Scratch](http://www.linuxfromscratch.org/hlfs/download.html)
+* [Introduction to Linux - A Hands on Guide](https://tldp.org/LDP/intro-linux/intro-linux.pdf) - Machtelt Garrels (PDF)
 * [Kali Linux 2018: Assuring Security by Penetration Testing, Fourth Edition](https://www.packtpub.com/free-ebooks/kali-linux-2018-assuring-security-penetration-testing-fourth-edition) - Shiva V. N Parasram, Alex Samm, Damian Boodoo, Gerard Johansen, Lee Allen, Tedi Heriyanto, Shakeel Ali (Packt account *required*)
 * [Kali Linux: Professional Penetration-Testing Distribution](http://docs.kali.org)
 * [Learning Debian GNU/Linux](http://www.oreilly.com/openbook/debian/book/index.html)
@@ -1541,6 +1547,7 @@ Books on general-purpose programming that don't focus on a specific language are
 > :information_source: See also &#8230; [IDE and editors](free-programming-books-subjects.md#ide-and-editors)
 
 * [An Introduction to Programming in Emacs Lisp](https://www.gnu.org/software/emacs/manual/eintr.html)
+* [Elisp Programming](https://caiorss.github.io/Emacs-Elisp-Programming/Elisp_Programming.html)
 * [GNU Emacs Lisp Reference Manual](http://www.gnu.org/software/emacs/manual/elisp.html)
 
 
@@ -1581,7 +1588,7 @@ Books on general-purpose programming that don't focus on a specific language are
 * [Mathematica® programming: an advanced introduction](http://www.mathprogramming-intro.org) - Leonid Shifrin
 * [Power Programming with Mathematica](http://mathematica.stackexchange.com/questions/16485/are-you-interested-in-purchasing-david-wagners-power-programming-with-mathemat/22724) - David B. Wagner
 * [Stephen Wolfram's The Mathematica Book](http://reference.wolfram.com/legacy/v5_2/)
-* [Vector Math for 3d Computer Graphics](http://chortle.ccsu.edu/VectorLessons/index.html)
+* [Vector Math for 3d Computer Graphics](http://chortle.ccsu.edu/VectorLessons/index.html) (CC BY-NC)
 * [Wolfram Mathematica Product Training: Wolfram U](https://www.wolfram.com/wolfram-u/catalog/product-training/mathematica/)
 
 
@@ -1860,6 +1867,11 @@ Books on general-purpose programming that don't focus on a specific language are
 * [The Symfony Book 4.4.x](https://symfony.com/doc/4.4/index.html)
 
 
+#### Yii
+
+* [The Definitive Guide to Yii 2.0](https://www.yiiframework.com/doc/download/yii-guide-2.0-en.pdf) - Yii Software (PDF)
+
+
 #### Zend
 
 * [Using Zend Framework 3](https://olegkrivtsov.github.io/using-zend-framework-3-book/html/)
@@ -1969,7 +1981,6 @@ Books on general-purpose programming that don't focus on a specific language are
 * [Dive into Python 3](https://diveintopython3.problemsolving.io) - Mark Pilgrim (3.0)
     * [Dive into Python](https://linux.die.net/diveintopython/html/toc/index.html) - Mark Pilgrim (2.3)
 * [Essential Python](https://www.programming-books.io/essential/python/) - Krzysztof Kowalczyk, StackOverflow Contributors
-* [From Python to NumPy](https://www.labri.fr/perso/nrougier/from-python-to-numpy/) - Nicolas P. Rougier (3.6)
 * [Full Stack Python](https://www.fullstackpython.com) - Matt Makai
 * [Functional Programming in Python](https://www.oreilly.com/ideas/functional-programming-in-python) - David Mertz  
 * [Fundamentals of  Python Programming](https://web.archive.org/web/20191005170430/http://python.cs.southern.edu/pythonbook/pythonbook.pdf) - Richard L. Halterman (PDF) *(:construction: in process)*
@@ -1990,7 +2001,7 @@ Books on general-purpose programming that don't focus on a specific language are
     * [Introduction to Programming Using Python](http://python-ebook.blogspot.co.uk) - Cody Jackson (1st edition) (2.3)
 * [Introduction to Python](http://kracekumar.com/post/71171551647/introduction-to-python) - Kracekumar (2.7.3)
 * [Introduction to Python for Econometrics, Statistics and Numerical Analysis](https://www.kevinsheppard.com/files/teaching/python/notes/python_introduction_2020.pdf) - Kevin Sheppard (PDF) (3.8)
-* [Introduction to Scientific Programming with Python](https://library.oapen.org/bitstream/id/56d27e73-e92a-4398-8198-239be7aacc93/2020_Book_IntroductionToScientificProgra.pdf) - Joakim Sundnes (PDF)
+* [Introduction to Scientific Programming with Python](https://library.oapen.org/bitstream/id/56d27e73-e92a-4398-8198-239be7aacc93/2020_Book_IntroductionToScientificProgra.pdf) - Joakim Sundnes (PDF) (CC BY)
 * [Invent Your Own Computer Games With Python](https://inventwithpython.com/invent4thed/) - Al Sweigart (3.4)
 * [Learn Python 3](https://github.com/animator/learn-python) - Ankit Mahato (PDF, HTML, Markdown)
 * [Learn Python, Break Python](http://learnpythonbreakpython.com)
@@ -2070,8 +2081,8 @@ Books on general-purpose programming that don't focus on a specific language are
 * [The Standard Python Library](https://web.archive.org/web/20200626001242/http://effbot.org/librarybook/) - Fredrik Lundh *(:card_file_box: archived)*
 * [Think Complexity](https://greenteapress.com/wp/think-complexity-2e/) - Allen B. Downey (2nd Edition) (PDF, HTML)
 * [Think DSP - Digital Signal Processing in Python](https://greenteapress.com/wp/think-dsp/) - Allen B. Downey (PDF, HTML)
-* [Think Python 2nd Edition](https://greenteapress.com/wp/think-python-2e/) - Allen B. Downey (3.x) (HTML, PDF)
-    * [Think Python First Edition](https://greenteapress.com/wp/think-python/) - Allen B. Downey (2.x) (HTML, PDF)
+* [Think Python 2nd Edition](https://greenteapress.com/wp/think-python-2e/) - Allen B. Downey (3.x) (HTML, PDF) (CC BY-NC)
+    * [Think Python First Edition](https://greenteapress.com/wp/think-python/) - Allen B. Downey (2.x) (HTML, PDF) (CC BY-NC)
 * [Tiny Python 3.6 Notebook](https://github.com/mattharrison/Tiny-Python-3.6-Notebook) - Matt Harrison (3.6)
 * [Tiny Python Projects](http://tinypythonprojects.com/Tiny_Python_Projects.pdf) - Ken Youens-Clark(PDF)
 * [Web2py: Complete Reference Manual, 6th Edition (pre-release)](http://web2py.com/book) (2.5 - 2.x)
@@ -2117,6 +2128,13 @@ Books on general-purpose programming that don't focus on a specific language are
 * [Kivy Programming Guide](https://kivy.org/docs/guide-index.html)
 
 
+#### NumPY
+
+* [From Python to NumPy](https://www.labri.fr/perso/nrougier/from-python-to-numpy/) - Nicolas P. Rougier (HTML) (3.6)
+* [Guide to NumPY 2010](https://web.mit.edu/dvp/Public/numpybook.pdf) - Travis E. Oliphant (PDF).
+* [NumPy user guide](https://numpy.org/doc/stable/user) - NumPY developers (HTML).
+
+
 #### Pandas
 
 * [Best Pandas Tutorial \| Learn with 50 Examples](https://www.listendata.com/2017/12/python-pandas-tutorial.html) - Ekta Aggarwal (HTML)
@@ -2207,7 +2225,7 @@ Books on general-purpose programming that don't focus on a specific language are
 
 * [Metagenomics](https://kyclark.gitbooks.io/metagenomics) - Ken Youens-Clark
 * [Perl 6 at a Glance](https://andrewshitov.com/wp-content/uploads/2020/01/Perl-6-at-a-Glance.pdf) - Andrew Shitov (PDF)
-* [Raku Guide](https://raku.guide) (HTML) [(PDF)](https://github.com/hankache/rakuguide)
+* [Raku Guide](https://raku.guide) (HTML) [(PDF)](https://github.com/hankache/rakuguide) (CC BY-SA)
 * [Raku One-Liners](https://andrewshitov.com/wp-content/uploads/2020/01/Raku-One-Liners.pdf) - Andrew Shitov (PDF)
 * [Raku Programming](https://en.wikibooks.org/wiki/Raku_Programming) - Wikibooks (HTML)
 * [Think Raku](https://github.com/LaurentRosenfeld/think_raku/raw/master/PDF/think_raku.pdf) - Laurent Rosenfeld, Allen B. Downey (PDF)
@@ -2566,6 +2584,7 @@ Books on general-purpose programming that don't focus on a specific language are
 * [Essential TypeScript](https://www.programming-books.io/essential/typescript/) - Krzysztof Kowalczyk, StackOverflow Contributors
 * [Learn TypeScript in Y Minutes](https://learnxinyminutes.com/docs/typescript/)
 * [Tackling TypeScript: Upgrading from JavaScript](https://exploringjs.com/tackling-ts/toc.html) - Axel Rauschmayer
+* [Total TypeScript: Essentials](https://www.totaltypescript.com/books/total-typescript-essentials) (HTML)
 * [TypeScript Accelerated](https://accelerated.amimetic.co.uk) - James Porter
 * [TypeScript Deep Dive](https://basarat.gitbooks.io/typescript/)
 * [TypeScript for C# Programmers](http://www.infoq.com/minibooks/typescript-c-sharp-programmers)
@@ -2629,7 +2648,7 @@ Books on general-purpose programming that don't focus on a specific language are
 
 ### Visual Basic
 
-* [Visual Basic .NET Notes for Professionals](https://goalkicker.com/VisualBasic_NETBook/) - Compiled from StackOverflow Documentation (PDF)
+* [Visual Basic .NET Notes for Professionals](https://goalkicker.com/VisualBasic_NETBook/) - Compiled from StackOverflow Documentation (PDF) (CC BY-SA)
 * [Visual Basic Official Docs](https://docs.microsoft.com/en-us/dotnet/visual-basic)
 
 
diff --git a/books/free-programming-books-ru.md b/books/free-programming-books-ru.md
index a7c80862a..d462116d8 100644
--- a/books/free-programming-books-ru.md
+++ b/books/free-programming-books-ru.md
@@ -572,6 +572,7 @@
 * [История о PostgreSQL](http://www.inp.nsk.su/~baldin/PostgreSQL/index.html) - Linux Format
 * [Работа с PostgreSQL - настройка и масштабирование](http://postgresql.leopard.in.ua) - А. Ю. Васильев
 * [PostgreSQL для начинающих](https://postgrespro.ru/education/books/introbook) - Luzanov Pavel Veniaminovich, Rogov Yegor Valerievich, Levshin Igor Viktorovich (PDF)
+* [PostgreSQL. Основы языка SQL](https://postgrespro.ru/education/books/sqlprimer) - Моргунов Евгений Павлович (PDF)
 
 
 ### Swift
diff --git a/books/free-programming-books-subjects.md b/books/free-programming-books-subjects.md
index 9f19bc2d7..d8b10bac9 100644
--- a/books/free-programming-books-subjects.md
+++ b/books/free-programming-books-subjects.md
@@ -90,9 +90,9 @@ Books that cover a specific programming language can be found in the [BY PROGRAM
 
 ### Algorithms & Data Structures
 
-* [A Field Guide To Genetic Programming](https://web.archive.org/web/20191020195105/http://www0.cs.ucl.ac.uk/staff/W.Langdon/ftp/papers/poli08_fieldguide.pdf) - Riccardo Poli, William B. Langdon, Nicholas F. McPhee (PDF) *(:card_file_box: archived)*
+* [A Field Guide To Genetic Programming](https://web.archive.org/web/20191020195105/http://www0.cs.ucl.ac.uk/staff/W.Langdon/ftp/papers/poli08_fieldguide.pdf) - Riccardo Poli, William B. Langdon, Nicholas F. McPhee (PDF) *(:card_file_box: archived)* (CC BY-NC-ND)
 * [Algorithm Design](https://archive.org/details/AlgorithmDesign1stEditionByJonKleinbergAndEvaTardos2005PDF) - Jon Kleinberg, Éva Tardos
-* [Algorithmic Graph Theory](https://code.google.com/p/graphbook/) - David Joyner, Minh Van Nguyen, David Phillips (PDF)
+* [Algorithmic Graph Theory](https://code.google.com/p/graphbook/) - David Joyner, Minh Van Nguyen, David Phillips (PDF) (GFDL)
 * [Algorithmic Thinking](https://labuladong.gitbook.io/algo-en) - Donglai Fu
 * [Algorithms](https://en.wikibooks.org/wiki/Algorithms) - Wikibooks
 * [Algorithms](https://jeffe.cs.illinois.edu/teaching/algorithms/book/Algorithms-JeffE.pdf) - Jeff Erickson (PDF)
@@ -136,11 +136,12 @@ Books that cover a specific programming language can be found in the [BY PROGRAM
 
 ### Artificial Intelligence
 
+* [Artificial Intelligence, 3rd Edition (1993)](https://courses.csail.mit.edu/6.034f/ai3/rest.pdf) - Patrick Henry Winston (PDF)
 * [Artificial Intelligence and the Future for Teaching and Learning](https://www2.ed.gov/documents/ai-report/ai-report.pdf) - Office of Educational Technology (PDF)
 * [Artificial Intelligence for a Better Future: An Ecosystem Perspective on the Ethics of AI and Emerging Digital Technologies](https://link.springer.com/book/10.1007/978-3-030-69978-9) - Bernd Carsten Stahl (PDF, EPUB)
 * [Artificial Intelligence: Foundations of Computational Agents (2010), 1st Edition](https://artint.info/aifca1e.html) - David L. Poole, Alan K. Mackworth @ Cambridge University Press (HTML)
 * [Artificial Intelligence: Foundations of Computational Agents (2017), 2nd Edition](https://artint.info) - David L. Poole, Alan K. Mackworth @ Cambridge University Press (HTML, Slides)
-* [Clever Algorithms Nature-Inspired Programming Recipes](https://bjpcjp.github.io/pdfs/ruby/Clever-Algorithms.pdf) - Jason Brownlee (PDF)
+* [Clever Algorithms Nature-Inspired Programming Recipes](https://bjpcjp.github.io/pdfs/ruby/Clever-Algorithms.pdf) - Jason Brownlee (PDF) (CC BY-NC-SA)
 * [Getting Started with Artificial Intelligence , 2nd Edition](https://www.ibm.com/downloads/cas/OJ6WX73V) - Tom Markiewicz, Josh Zheng (PDF)
 * [Graph Representational Learning Book](https://www.cs.mcgill.ca/~wlh/grl_book/) - William L. Hamilton
 * [Introduction to Autonomous Robots](https://github.com/correll/Introduction-to-Autonomous-Robots/releases) - Nikolaus Correll (PDF)
@@ -170,6 +171,8 @@ Books that cover a specific programming language can be found in the [BY PROGRAM
 ### Cellular Automata
 
 * [A New Kind of Science](https://www.wolframscience.com/nksonline/toc.html) - Stephen Wolfram
+* [An Introduction to Cellular Automata](https://ia801004.us.archive.org/26/items/viviencellularautomata/vivien%20cellular%20automata.pdf) - Hélène Vivien (PDF)
+* [Introduction to the Modeling and Analysis of Complex Systems](https://milneopentextbooks.org/introduction-to-the-modeling-and-analysis-of-complex-systems/) - Hiroki Sayama
 
 
 ### Cloud Computing
@@ -223,7 +226,7 @@ Books that cover a specific programming language can be found in the [BY PROGRAM
 
 * [Basic Computer Architecture](https://www.cse.iitd.ac.in/~srsarangi/archbooksoft.html) - Smruti R. Sarangi (HTML, PDF, Slides, Videos)
 * [Computer Organization and Design Fundamentals](https://faculty.etsu.edu/tarnoff/138292) - David Tarnoff (PDF)
-* [Digital Circuit Projects: An Overview of Digital Circuits Through Implementing Integrated Circuits - Second Edition](https://cupola.gettysburg.edu/cgi/viewcontent.cgi?article=1000&context=oer) - Charles W. Kann (PDF)
+* [Digital Circuit Projects: An Overview of Digital Circuits Through Implementing Integrated Circuits - Second Edition](https://cupola.gettysburg.edu/cgi/viewcontent.cgi?article=1000&context=oer) - Charles W. Kann (PDF) (CC BY)
 * [Dive Into Systems: A Gentle Introduction to Computer Systems](https://diveintosystems.org) - Suzanne J. Matthews, Tia Newhall, Kevin C. Webb (HTML)
 
 
@@ -233,8 +236,8 @@ Books that cover a specific programming language can be found in the [BY PROGRAM
 * [Computational Thinking](https://www.cs.cmu.edu/~15110-s13/Wing06-ct.pdf) - Jeannette Wing, Carnegie-Mellon University (PDF)
 * [Computer Science Class XI](https://cbseacademic.nic.in/web_material/doc/cs/1_Computer-Science-Python-Book-Class-XI.pdf) - CBSE (PDF)
 * [Computer Science Class XII](https://cbseacademic.nic.in/web_material/doc/cs/2_Computer_Science_Python_ClassXII.pdf) - CBSE (PDF)
-* [Computer Science I](https://cse.unl.edu/~cbourke/ComputerScienceOne.pdf) - Chris Bourke (PDF)
-* [Computer Science II](https://cse.unl.edu/~cbourke/ComputerScienceTwo.pdf) - Chris Bourke (PDF)
+* [Computer Science I](https://cse.unl.edu/~cbourke/ComputerScienceOne.pdf) - Chris Bourke (PDF) (CC BY-SA) 
+* [Computer Science II](https://cse.unl.edu/~cbourke/ComputerScienceTwo.pdf) - Chris Bourke (PDF) (CC BY-SA)
 * [CS Principles: Big Ideas in Programming](https://www.openbookproject.net/books/StudentCSP/) - Mark Guzdial, Barbara Ericson (HTML)
 * [Pull Requests and Code Review](https://scs.tl/book-pr) – Sebastien Castiel
 * [What to Look for in a Code Review](https://leanpub.com/whattolookforinacodereview) - Trisha Gee (HTML, PDF, EPUB, Kindle) *(Leanpub account or valid email requested)*
@@ -254,7 +257,7 @@ Books that cover a specific programming language can be found in the [BY PROGRAM
 * [CI/CD for Monorepos: Effectively building, testing, and deploying code with monorepos](https://github.com/semaphoreci/book-monorepo-cicd) - Pablo Tomas Fernandez Zavalia, Marko Anastasov, SemaphoreCI (PDF, EPUB, Kindle)
 * [CI/CD with Docker and Kubernetes Book](https://github.com/semaphoreci/book-cicd-docker-kubernetes) - Marko Anastasov, Jérôme Petazzoni, Pablo Tom F. Zavalia, SemaphoreCI (PDF, EPUB, Kindle)
 * [Docker Jumpstart](https://odewahn.github.io/docker-jumpstart/) - Andrew Odewahn
-* [Docker Tutorial](https://people.irisa.fr/Anthony.Baire/docker-tutorial.pdf) - Anthony Baire (PDF)
+* [Docker Tutorial](https://people.irisa.fr/Anthony.Baire/docker-tutorial.pdf) - Anthony Baire (PDF) (CC BY-NC-ND)
 * [Docker Tutorial](https://www.tutorialspoint.com/docker/) - Tutorials Point (HTML, PDF)
 * [Dotnet Microservices Architecture for Containerized NET Applications](https://aka.ms/microservicesebook) - Cesar de la Torre, Bill Wagner, Mike Rousos (PDF)
 * [Kubernetes Deployment & Security Patterns](https://resources.linuxfoundation.org/LF+Projects/CNCF/TheNewStack_Book2_KubernetesDeploymentAndSecurityPatterns.pdf) - Alex Williams (PDF)
@@ -303,9 +306,9 @@ Books that cover a specific programming language can be found in the [BY PROGRAM
 ### Embedded Systems
 
 * [Control and Embedded Systems](http://www.learn-c.com) (HTML)
-* [Discovering the STM32 Microcontroller](http://www.cs.indiana.edu/~geobrown/book.pdf) (PDF)
+* [Discovering the STM32 Microcontroller](http://www.cs.indiana.edu/~geobrown/book.pdf) (PDF) (CC BY-NC-SA)
 * [First Steps with Embedded Systems](https://www.phaedsys.com/principals/bytecraft/bytecraftdata/bcfirststeps.pdf) - Byte Craft Limited (PDF)
-* [Introduction to Embedded Systems, Second Edition](https://ptolemy.berkeley.edu/books/leeseshia/releases/LeeSeshia_DigitalV2_2.pdf) - Edward Ashford Lee, Sanjit Arunkumar Seshia (PDF)
+* [Introduction to Embedded Systems, Second Edition](https://ptolemy.berkeley.edu/books/leeseshia/releases/LeeSeshia_DigitalV2_2.pdf) - Edward Ashford Lee, Sanjit Arunkumar Seshia (PDF) (CC BY-NC-ND)
 * [Introduction to Microcontrollers](http://www.embeddedrelated.com/showarticle/453.php) (HTML)
 * [Mastering the FreeRTOS Real Time Kernel - a Hands On Tutorial Guide](https://freertos.org/Documentation/RTOS_book.html) - freertos.org ([PDF](https://freertos.org/fr-content-src/uploads/2018/07/161204_Mastering_the_FreeRTOS_Real_Time_Kernel-A_Hands-On_Tutorial_Guide.pdf))
 
@@ -368,6 +371,7 @@ Books that cover a specific programming language can be found in the [BY PROGRAM
 
 * [A Byte of Vim](https://www.swaroopch.com/notes/vim/) - Swaroop (PDF)
 * [GNU Emacs Manual](https://www.gnu.org/software/emacs/manual/emacs.html) - Free Software Foundation Inc. (HTML, PDF)
+* [Learn Neovim](https://ofirgall.github.io/learn-nvim/chapters/00-why-should-i-learn.html) - Ofir Gal (online, PDF)
 * [Learn Vim (the Smart Way)](https://github.com/iggredible/Learn-Vim) - Igor Irianto (HTML) *(:construction: in process)*
 * [Learn Vim For the Last Time](https://danielmiessler.com/study/vim/) - Daniel Miessler
 * [Learn Vim Progressively](https://yannesposito.com/Scratch/en/blog/Learn-Vim-Progressively/) - Yann Esposito
@@ -439,16 +443,17 @@ Books that cover a specific programming language can be found in the [BY PROGRAM
 * [Probabilistic Machine Learning - An Introduction](https://github.com/probml/pml-book/releases/latest/download/book1.pdf) - Kevin P. Murphy (PDF)
 * [Probabilistic Models in the Study of Language](https://idiom.ucsd.edu/~rlevy/pmsl_textbook/text.html) (Draft, with R code)
 * [Python Machine Learning Projects](https://www.digitalocean.com/community/books/python-machine-learning-projects-a-digitalocean-ebook) - Lisa Tagliaferri, Brian Boucheron, Michelle Morales, Ellie Birkbeck, Alvin Wan (PDF, EPUB, Kindle)
-* [Reinforcement Learning: An Introduction](http://incompleteideas.net/book/RLbook2020.pdf) - Richard S. Sutton, Andrew G. Barto (PDF)
+* [Reinforcement Learning: An Introduction](http://incompleteideas.net/book/RLbook2020.pdf) - Richard S. Sutton, Andrew G. Barto (PDF) (CC BY-NC-ND)
 * [Speech and Language Processing (3rd Edition Draft)](https://web.stanford.edu/~jurafsky/slp3/ed3book.pdf) - Daniel Jurafsky, James H. Martin (PDF)
 * [The Elements of Statistical Learning](https://web.stanford.edu/~hastie/ElemStatLearn/) - Trevor Hastie, Robert Tibshirani, and Jerome Friedman
 * [The LION Way: Machine Learning plus Intelligent Optimization](https://intelligent-optimization.org/LIONbook/lionbook_3v0.pdf) - Roberto Battiti, Mauro Brunato (PDF)
-* [The Little Book of Deep Learning](https://fleuret.org/public/lbdl.pdf) - François Fleuret (PDF)
+* [The Little Book of Deep Learning](https://fleuret.org/public/lbdl.pdf) - François Fleuret (PDF) (CC BY-NC-SA)
 * [The Mathematical Engineering of Deep Learning](https://deeplearningmath.org) - Benoit Liquet, Sarat Moka, Yoni Nazarathy
 * [The Mechanics of Machine Learning](https://mlbook.explained.ai) - Terence Parr, Jeremy Howard
 * [The Python Game Book](https://web.archive.org/web/20210308080726/https://thepythongamebook.com/en%3Astart) - Horst Jens *(:card_file_box: archived)*
 * [Top 10 Machine Learning Algorithms Every Engineer Should Know](https://www.dezyre.com/article/top-10-machine-learning-algorithms/202) - Binny Mathews, Omair Aasim
 * [Understanding Machine Learning: From Theory to Algorithms](https://www.cs.huji.ac.il/~shais/UnderstandingMachineLearning) - Shai Shalev-Shwartz, Shai Ben-David
+* [User Guide - scikit-learn](https://scikit-learn.org/stable/user_guide.html) - Scikit-learn developers (HTML) (BSD)
 
 
 ### Mathematics
@@ -660,6 +665,7 @@ Books that cover a specific programming language can be found in the [BY PROGRAM
 * [Small Memory Software](https://smallmemory.charlesweir.com/book.html) - Charles Weir, James Noble (HTML)
 * [Software Technical Writing: A Guidebook](https://jamesg.blog/book.pdf) - James Gallagher (PDF)
 * [The Web Development Glossary](https://github.com/frontenddogma/web-development-glossary) – Jens Oliver Meiert
+* [Using Z Specification, Refinement, and Proof](http://www.usingz.com/usingz.pdf) -  Jim Woodcock, Jim Davies (PDF)
 * [Web Almanac](https://almanac.httparchive.org/static/pdfs/web_almanac_2019_en.pdf) (PDF)
 * [Writing Native Mobile Apps in a Functional Language Succinctly](https://www.syncfusion.com/ebooks/writing_native_mobile_apps_in_a_functional_language_succinctly) - Vassili Kaplan
 
@@ -739,9 +745,9 @@ Books that cover a specific programming language can be found in the [BY PROGRAM
 * [Project Oberon: The Design of an Operating System, a Compiler, and a Computer](https://people.inf.ethz.ch/wirth/ProjectOberon/index.html) - Niklaus Wirth, Jürg Gutknecht (PDF)
 * [The Art of Unix Programming](http://catb.org/esr/writings/taoup/html/) - Eric S. Raymond (HTML)
 * [The Little Book About OS Development](https://littleosbook.github.io) - Erik Helin, Adam Renberg - (PDF, HTML)
-* [The Little Book of Semaphores](https://greenteapress.com/semaphores/) - Allen B. Downey (PDF)
+* [The Little Book of Semaphores](https://greenteapress.com/semaphores/) - Allen B. Downey (PDF) (CC BY-NC-SA)
 * [Think OS: A Brief Introduction to Operating Systems](https://www.greenteapress.com/thinkos/index.html) - Allen B. Downey (PDF)
-* [UNIX Application and System Programming, lecture notes](http://www.compsci.hunter.cuny.edu/~sweiss/course_materials/unix_lecture_notes.php) - Stewart Weiss (PDF)
+* [UNIX Application and System Programming, lecture notes](http://www.compsci.hunter.cuny.edu/~sweiss/course_materials/unix_lecture_notes.php) - Stewart Weiss (PDF) (CC BY-SA)
 * [Writing a Simple Operating System from Scratch](https://www.cs.bham.ac.uk/~exr/lectures/opsys/10_11/lectures/os-dev.pdf) - Nick Blundell (PDF)
 * [Xv6, a simple Unix-like teaching operating system](https://pdos.csail.mit.edu/6.828/2022/xv6.html) - Russ Cox, Frans Kaashoek and Robert Morris (PDF, HTML)
 
@@ -788,8 +794,8 @@ Kerridge (PDF) (email address *requested*, not required)
 * [Principled Programming / Introduction to Coding in Any Imperative Language](https://www.cs.cornell.edu/info/people/tt/Principled_Programming.html) - Tim Teitelbaum
 * [Programming and Programming Languages](https://papl.cs.brown.edu/2019/) - Shriram Krishnamurthi
 * [Programming Languages: Application and Interpretation (2nd Edition)](https://cs.brown.edu/~sk/Publications/Books/ProgLangs/) - Shriram Krishnamurthi
-* [Structure and Interpretation of Computer Programs](https://web.mit.edu/6.001/6.037/sicp.pdf) - Harold Abelson, Gerald Jay Sussman, Julie Sussman (PDF)
-* [Structure and Interpretation of Computer Programs](https://sarabander.github.io/sicp/html/index.xhtml) - Harold Abelson, Gerald Jay Sussman, Julie Sussman (HTML)
+* [Structure and Interpretation of Computer Programs](https://web.mit.edu/6.001/6.037/sicp.pdf) - Harold Abelson, Gerald Jay Sussman, Julie Sussman (PDF) (CC BY-SA)
+* [Structure and Interpretation of Computer Programs](https://sarabander.github.io/sicp/html/index.xhtml) - Harold Abelson, Gerald Jay Sussman, Julie Sussman (HTML) (CC BY-SA)
 * [The Black Art of Programming](http://self.gutenberg.org/wplbn0002828847-the-black-art-of-programming-by-mcilroy-mark.aspx?) - Mark McIlroy
 * [The Craft of Programming](https://kilthub.cmu.edu/articles/The_Craft_of_Programming/6610514) - John C. Reynolds
 * [The Nature of Code](https://natureofcode.com/book) - Daniel Shiffman (HTML)
@@ -804,7 +810,7 @@ Kerridge (PDF) (email address *requested*, not required)
 * [Making Sense of Stream Processing](https://assets.confluent.io/m/2a60fabedb2dfbb1/original/20190307-EB-Making_Sense_of_Stream_Processing_Confluent.pdf) - Martin Kleppmann (PDF)
 * [Mostly Adequate Guide to Functional Programming](https://mostly-adequate.gitbooks.io/mostly-adequate-guide/content/) - Mostly Adequate Core Team
 * [The Pure Function Pipeline Data Flow v3.0 ---- the Grand Unified Programming Theory](https://github.com/linpengcheng/PurefunctionPipelineDataflow) - Lin Pengcheng
-* [Type Theory and Functional Programming](https://www.cs.kent.ac.uk/people/staff/sjt/TTFP/)
+* [Type Theory and Functional Programming](https://www.cs.kent.ac.uk/people/staff/sjt/TTFP/) - Simon Thompson
 
 
 ### Prompt Engineering
@@ -839,7 +845,7 @@ Kerridge (PDF) (email address *requested*, not required)
 
 * [BIOS Disassembly Ninjutsu Uncovered 1st Edition](https://bioshacking.blogspot.co.uk/2012/02/bios-disassembly-ninjutsu-uncovered-1st.html) - Darmawan Salihun (PDF)
 * [Hacking the Xbox: An Introduction to Reverse Engineering](https://www.nostarch.com/xboxfree/) - Andrew "bunnie" Huang
-* [iOS App Reverse Engineering](https://github.com/iosre/iOSAppReverseEngineering) (PDF)
+* [iOS App Reverse Engineering](https://github.com/iosre/iOSAppReverseEngineering) - Zishe Sha (PDF)
 
 
 ### Search Engines
@@ -914,6 +920,7 @@ Kerridge (PDF) (email address *requested*, not required)
 * [The Catalog of Design Patterns](https://refactoring.guru/design-patterns/catalog)
 * [The Site Reliability Workbook](https://landing.google.com/sre/workbook/toc/) - Betsy Beyer, Niall Richard Murphy, David K. Rensin, Kent Kawahara, Stephen Thorne
 * [Web API Design](https://pages.apigee.com/rs/apigee/images/api-design-ebook-2012-03.pdf) - Brian Mulloy (PDF)
+* [Web Browser Engineering](https://browser.engineering/index.html) - Pavel Panchekha, Chris Harrelson
 * [Working with Web APIs](https://launchschool.com/books/working_with_apis) - Launch School
 * [Your API Is Bad](https://leanpub.com/yourapiisbad/read) - Paddy Foran
 
diff --git a/books/free-programming-books-sv.md b/books/free-programming-books-sv.md
index 3f1b52f3f..3437f87a1 100644
--- a/books/free-programming-books-sv.md
+++ b/books/free-programming-books-sv.md
@@ -18,6 +18,11 @@
 * [Programmera spel i C++ för nybörjare](https://sv.wikibooks.org/wiki/Programmera_spel_i_C%2B%2B_f%C3%B6r_nyb%C3%B6rjare) - Wikibooks
 
 
+### Git
+
+* [Pro Git](https://git-scm.com/book/sv/v2) - (HTML) *(:construction: in process)*
+
+
 ### Fortran
 
 * [Lärobok i Fortran 95](http://www.boein.se/f95.pdf) - Linköpings Universitet, Bo Einarsson (PDF)
diff --git a/books/free-programming-books-ta.md b/books/free-programming-books-ta.md
index ebaddef33..b5fceeadf 100644
--- a/books/free-programming-books-ta.md
+++ b/books/free-programming-books-ta.md
@@ -3,6 +3,7 @@
 * [AR/VR/MR](#ar-vr-mr)
 * [C Programming Language](#c-programming-language)
 * [Computer Vision](#computer-vision)
+* [Git/Github](#git-github)
 * [Hadoop](#hadoop)
 * [HTML and CSS](#html-and-css)
 * [IOT](#iot)
@@ -32,6 +33,11 @@
 * [எளிய தமிழில் Computer Vision](https://freetamilebooks.com/ebooks/computer_vision/) - இரா.அசோகன் (PDF)
 
 
+### Git Github
+
+* [எளிய தமிழில் கிட்(Git) – தொழில்நுட்பம்](https://freetamilebooks.com/ebooks/eliya_tamizhil_git/) - கி. முத்துராமலிங்கம் (PDF)
+
+
 ### Hadoop
 
 * [எளிய தமிழில் Big Data](https://freetamilebooks.com/ebooks/learn-bigdata-in-tamil) - து. நித்யா (PDF)
@@ -57,6 +63,7 @@
 
 ### Machine Learning
 
+* [எளிய தமிழில் Deep Learning](https://freetamilebooks.com/ebooks/learn_deep_learning_in_tamil/) - து. நித்யா (PDF)
 * [எளிய தமிழில் ML](https://freetamilebooks.com/ebooks/learn_machine_learning_in_tamil/) - து. நித்யா (PDF)
 
 
diff --git a/books/free-programming-books-tr.md b/books/free-programming-books-tr.md
index a110e2eb9..815fda263 100644
--- a/books/free-programming-books-tr.md
+++ b/books/free-programming-books-tr.md
@@ -14,6 +14,7 @@
 * [HTML and CSS](#html-and-css)
 * [iOS](#ios)
 * [Java](#java)
+* [JavaScript](#javascript)
 * [LaTeX](#latex)
 * [Linux](#linux)
 * [.NET Framework](#net-framework)
@@ -110,6 +111,11 @@
 * [Java Kitabı](https://ia601503.us.archive.org/27/items/java-kitabi/java-kitabi.pdf) (PDF)
 
 
+### JavaScript
+
+* [Learn JavaScript](https://javascript.sumankunwar.com.np/tr) - Suman Kumar, Github Contributors (HTML, PDF)
+
+
 ### LaTeX
 
 * [İnce bir LaTeX2ε Elkitabı](http://www.ctan.org/tex-archive/info/lshort/turkish)
diff --git a/books/free-programming-books-uk.md b/books/free-programming-books-uk.md
index fff677a16..f0d0d5627 100644
--- a/books/free-programming-books-uk.md
+++ b/books/free-programming-books-uk.md
@@ -44,7 +44,7 @@
 
 ### PHP
 
-* [Symfony: Швидкий старт](https://symfony.com/doc/current/the-fast-track/uk/index.html) - Symfony SAS
+* [Symfony: Швидкий старт](https://symfony.com.ua/doc/current/quick_tour/index.html) - Symfony SAS
 
 
 ### Python
diff --git a/books/free-programming-books-zh.md b/books/free-programming-books-zh.md
index cfaff36e2..c2d66ad1d 100644
--- a/books/free-programming-books-zh.md
+++ b/books/free-programming-books-zh.md
@@ -12,6 +12,7 @@
     * [函数式概念](#函数式概念)
     * [计算机图形学](#计算机图形学)
     * [其它](#其它)
+    * [人工智能](#人工智能)
     * [软件开发方法](#软件开发方法)
     * [设计模式](#设计模式)
     * [数据库](#数据库)
@@ -186,6 +187,11 @@
 * [Sketch 中文手册](http://sketchcn.com/sketch-chinese-user-manual.html#introduce)
 
 
+### 人工智能
+
+* [动手实战人工智能](https://aibydoing.com) - huhuhang
+
+
 ### 软件开发方法
 
 * [傻瓜函数编程](https://github.com/justinyhuang/Functional-Programming-For-The-Rest-of-Us-Cn) (《Functional Programming For The Rest of Us》中文版)
diff --git a/courses/free-courses-bn.md b/courses/free-courses-bn.md
index c158a5e79..ad93fecfc 100644
--- a/courses/free-courses-bn.md
+++ b/courses/free-courses-bn.md
@@ -289,7 +289,7 @@
 
 #### Laravel
 
-* [Restapi Bangla tutorial \| Laravel & Lumen Api development](https://www.youtube.com/playlist?list=PLbC4KRSNcMnoQONzuNtFlhEzegTYadoBY) - Learn Hunter
+* [laravel 10 bangla tutorial latest version \| laravel basic to advanced from official documentation](https://www.youtube.com/playlist?list=PLbC4KRSNcMnrY78JyoI8c0pk-reuSw8ff) - Learn Hunter
 
 
 ### Programming paradigms
@@ -303,8 +303,7 @@
 ### Python
 
 * [Bangla Python Tutorial for Beginners](https://www.youtube.com/playlist?list=PLlBKlxyCgmsCYJLq9qc5QzaU-oBFJN79B) - Niamul Hasan (StartBit)
-* [Python All You Need To Know](https://www.youtube.com/playlist?list=PL_XxuZqN0xVCH8fRfZ8sUuKEQQYIFMjtJ) - Stack Learner
-* [Python Bangla Tutorial & Data Science Full Course](https://www.youtube.com/playlist?list=PLmZYUigljiyc-tf7oMmM-s832ibhGxTpT) - Study Mart
+* [Python All You Need to Know / stack learner](https://www.youtube.com/playlist?list=PL3-qJK8D7YirnPBwmPNRyczdVOEwJbtLW) - Stack Learner
 * [Python Bangla Tutorial 2023](https://www.youtube.com/playlist?list=PLNMnAEqLBwmpR8JDBOEl0jrzmH1vPnO7v) - Hablu Programmer
 * [Python Bangla Tutorials for Beginners](https://www.youtube.com/playlist?list=PLgH5QX0i9K3rz5XqMsTk41_j15_6682BN) - Anisul Islam
 * [Python For Beginners - Bangla Tutorials](https://www.youtube.com/playlist?list=PLvr0Ht-XkB_0V-mjAYlfgk-3VRmFarlzC) - Learn With Tawhid
@@ -355,7 +354,6 @@
 ### WordPress
 
 * [WordPress Bangla Tutorial](https://www.youtube.com/playlist?list=PLm64fbD5Onxti7DiUkX3UX3P2tuiEw30E) - Moshiur
-* [Wordpress Bangla Tutorial Course for beginner to advanced level](https://www.youtube.com/playlist?list=PLeCz-UdZ0uzQVPdQN-mWnz8896BdYMqAf) - Freelancer Mannan
 * [WordPress Customization Bangla Tutorial](https://www.youtube.com/playlist?list=PLbC4KRSNcMno7NzhTgGhoZtRjLiHUo8m4) - Learn Hunter
 * [WordPress Plugin Development](https://www.youtube.com/playlist?list=PLSNRR4BKcowCkeAxfdtTsLqwR0LJYwDaz) - Procoder BD
 * [WordPress Theme Development Tutorial Bangla ](https://www.youtube.com/playlist?list=PLSNRR4BKcowD6A-U_ll9ayJWqOEz3XD8l) - Procoder BD
diff --git a/courses/free-courses-en.md b/courses/free-courses-en.md
index fa068feb8..b360f40fd 100644
--- a/courses/free-courses-en.md
+++ b/courses/free-courses-en.md
@@ -47,6 +47,7 @@
 * [Haskell](#haskell)
 * [HTML and CSS](#html-and-css)
     * [Bootstrap](#bootstrap)
+* [IDE and editors](#ide-and-editors)
 * [iOS](#ios)
 * [Java](#java)
 * [JavaScript](#javascript)
@@ -128,6 +129,7 @@
 * [FutureLearn](https://www.futurelearn.com)
 * [IITBombayX (IITBX)](https://www.iitbombayx.in)
 * [Khan Academy](https://www.khanacademy.org)
+* [LabEx](https://labex.io)
 * [LearnWeb3 DAO \| Become a Web3 Developer for Free](https://learnweb3.io)
 * [MIT OCW](http://ocw.mit.edu)
 * [MOOC.fi](https://www.mooc.fi/en/)
@@ -149,7 +151,6 @@
 * [Analysis of Algorithms (CSE 373)](https://www3.cs.stonybrook.edu/~skiena/373/videos) - Steven Skiena
 * [Berkeley University CS 61B: Data Structures](http://datastructur.es/sp16/)
 * [Berkeley's CS 61B: Data Structures](https://archive.org/details/ucberkeley_webcast_QMV45tHCYNI)
-* [Binary Trees - by LoveBabbar](https://www.youtube.com/playlist?list=PLDzeHZWIZsTo87y1ytEAqp7wYlEP3nner) - CodeHelp - by Babbar
 * [C Programming & Data Structures](https://www.youtube.com/playlist?list=PLBlnK6fEyqRhX6r2uhhlubuF5QextdCSM) - Neso Academy
 * [Codechef Solutions](https://www.youtube.com/playlist?list=PLRKOqqzwh75huOam-77G1v9uHjO9WWBRX) - Endeavour Monk
 * [Computer Sc - Programming and Data Structure](https://www.youtube.com/playlist?list=PLD9781AC5EBC9FA16) - P.P. Chakraborty
@@ -203,13 +204,11 @@
 
 * [Introduction To Soft Computing](https://www.youtube.com/playlist?list=PLJ5C_6qdAvBFqAYS0P9INAogIMklG8E-9) - Computer Science and Engineering
 * [Learn and Grow](https://www.youtube.com/playlist?list=PL_kjqgSKrEaA8RDh56AeTOrcGj-nMDkSS) - Learn and Grow
-* [Soft Computing /| University exams specific](https://www.youtube.com/playlist?list=PLuAADu3OvBt5-e5yXuIqBi1pttqw3RBeg) - Er Sahil ka Gyan
 
 
 ### Android
 
 * [Advanced Android App Development](https://www.udacity.com/course/advanced-android-app-development--ud855) (Udacity)
-* [Advanced Android with Kotlin](https://www.udacity.com/course/advanced-android-with-kotlin--ud940) (Udacity)
 * [Android App Development for Beginners Playlist](https://www.youtube.com/playlist?list=PL6gx4Cwl9DGBsvRxJJOzG4r4k_zLKrnxl) - Bucky Roberts (thenewboston)
 * [Android App Development Tutorial for Beginners (2020) \| Complete Guides and Courses](https://www.youtube.com/playlist?list=PLwhVruPHD9rz2MwQuYSenQ0WK1IGP5rYM) - tutorialsEU
 * [Android Basics: Data Storage](https://www.udacity.com/course/android-basics-data-storage--ud845) (Udacity)
@@ -220,21 +219,19 @@
 * [Android Basics with Compose](https://developer.android.com/courses/android-basics-compose/course) - Google Developers Training
 * [Android Developer Fundamentals (Version 2) — Codelab](https://developer.android.com/courses/fundamentals-training/toc-v2)
 * [Android Developer Fundamentals (Version 2) — Concepts](https://google-developer-training.github.io/android-developer-fundamentals-course-concepts-v2/index.html)
+* [Android Development for Beginners - Full Course](https://www.youtube.com/watch?v=fis26HvvDII) - freeCodeCamp.org
 * [Android Development Tutorials](https://www.youtube.com/playlist?list=PLqM7alHXFySF_Hb1GtyvCX44dBniJ5sNy) -  GeeksforGeeks
 * [Android Performance](https://www.udacity.com/course/android-performance--ud825) (Udacity)
 * [Android Tutorial for Beginners](https://www.youtube.com/playlist?list=PLsyeobzWxl7p-lZvWabkVJdM_UVURhUh4) - Telusko
-* [Android with kotlin](https://www.youtube.com/playlist?list=PLlxmoA0rQ-Lw5k_QCqVl3rsoJOnb_00UV) - Smartherd
 * [Build Native Mobile Apps with Flutter](https://www.udacity.com/course/build-native-mobile-apps-with-flutter--ud905) (Udacity)
 * [CS194A Android Development](https://www.youtube.com/playlist?list=PL7NYbSE8uaBDcLkbXsQADdvBnVbavonGn) - Rahul Pandey (Stanford)
 * [CS50 2019 - Android Track](https://www.youtube.com/playlist?list=PLhQjrBD2T381qULidYDKP55-4u1piASC1) - David J. Malan (Harvard OpenCourseWare)
 * [Developing Android Apps](https://www.udacity.com/course/new-android-fundamentals--ud851) (Udacity)
-* [Developing Android Apps with Kotlin](https://www.udacity.com/course/developing-android-apps-with-kotlin--ud9012) (Udacity)
 * [Firebase Analytics: Android](https://www.udacity.com/course/firebase-analytics-android--ud354) - Steve Ganem, Todd Kerpelman, Jessica Lin, Daniel Mai (Udacity)
 * [Firebase in a Weekend: Android](https://www.udacity.com/course/firebase-in-a-weekend-by-google-android--ud0352) (Udacity)
 * [Gradle for Android and Java](https://www.udacity.com/course/gradle-for-android-and-java--ud867) (Udacity)
 * [Jetpack Compose](https://www.youtube.com/playlist?list=PLQkwcJG4YTCSpJ2NLhDTHhi6XBNfk9WiC) - Philipp Lackner
 * [Jetpack Compose for Android Developers](https://developer.android.com/courses/jetpack-compose/course) - Google Developers Training
-* [Kotlin Bootcamp for Programmers](https://www.udacity.com/course/kotlin-bootcamp-for-programmers--ud9011) (Udacity)
 * [Learn Android Application Development for Beginners](https://www.udemy.com/course/learn-android-application-development-y/) - Johan Jurrius, ProgramMe Programming (Udemy)
 * [Learn Android in 9 Hours](https://www.youtube.com/watch?v=aS__9RbCyHg) (Edureka)
 * [Material design](https://material.io/guidelines/)
@@ -266,12 +263,18 @@
 * [Aml-2018 Ambient Intelligence](https://www.youtube.com/playlist?list=PLqRTLlwsxDL8fUcY2Y54sITILyJcTySpC) - Fulvio Corno, Luigi De Russis, Alberto Monge Roffarello @ Politecnico di Torino
 * [Artificial Intelligence on Google Cloud Platform](https://www.youtube.com/playlist?list=PL3N9eeOlCrP6Nhv4UFp67IsQ_TVDpXqXK) - Srivatsan Srinivasan @ AIEngineering
 * [Artificial Intelligence Search Methods For Problem Solving](https://www.youtube.com/playlist?list=PLbMVogVj5nJSFZoiF6RDqyz_m6Srjx_MY) - nptelhrd
+* [AWS Certified AI Practitioner (AIF-C01)](https://www.youtube.com/watch?v=WZeZZ8_W-M4) - Andrew Brown (FreeCodeCamp)
+* [Community Computer Vision Course](https://huggingface.co/learn/computer-vision-course) - Hugging Face
 * [CS50’s Introduction to Artificial Intelligence with Python](https://cs50.harvard.edu/ai/) - Brian Yu, David J. Malan (Harvard OpenCourseWare and edX)
+* [Deep Reinforcement Learning Course](https://huggingface.co/learn/deep-rl-course) - Hugging Face
+* [Diffusion Course](https://huggingface.co/learn/diffusion-course) - Hugging Face
 * [Elements of AI](https://www.elementsofai.com) - University of Helsinki, Reaktor
+* [Have fun Staying Home And Learning AI - SHALA2020](https://shala2020.github.io) - IIT BOMBAY
 * [IBM AI Engineering Professional Certificate](https://www.coursera.org/professional-certificates/ai-engineer) - Romeo Kienzler, Saeed Aghabozorgi, Joseph Santarcangelo, Alex Aklson et al. (Coursera)
 * [Introduction to TensorFlow for Artificial Intelligence, Machine Learning, and Deep Learning](https://www.coursera.org/learn/introduction-tensorflow) - DeepLearning.ai (Coursera)
 * [MIT Deep Learning and Artificial Intelligence Lectures](https://deeplearning.mit.edu) - Lex Fridman, et al.
 * [MIT's Artificial Intelligence](http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-034-artificial-intelligence-fall-2010/) - Patrick Henry Winston (MIT OpenCourseWare)
+* [NLP Course](https://huggingface.co/learn/nlp-course) - Hugging Face
 * [NYU Artificial Intelligence SP24](https://www.youtube.com/playlist?list=PLLHTzKZzVU9cH26X9VQ14lIA0aPwZiZTx) - Alfredo Canziani, Ernest Davis
 * [Stanford CS221: Artificial Intelligence: Principles and Techniques \| Autumn 2019](https://www.youtube.com/playlist?list=PLoROMvodv4rO1NB9TD4iUZ3qghGEGtqNX) - Stanford Online
 
@@ -319,6 +322,7 @@
 
 ### Blockchain
 
+* [Assembly and Formal Verification](https://updraft.cyfrin.io/courses/formal-verification) - Cyfrin Updraft
 * [BerkeleyX: Blockchain Technology](https://www.edx.org/learn/blockchain/university-of-california-berkeley-blockchain-technology) - Rustie Lin and Nadir Akhtar
 * [Blockchain Developer Tutorials](https://www.youtube.com/playlist?list=PLS5SEs8ZftgUTXs0OJD2LFpYBPr4L54id) - Gregory McCubbin (Dapp University)
 * [Blockchain Essentials](https://cognitiveclass.ai/courses/blockchain-course) - CognitiveClass.ai
@@ -330,7 +334,9 @@
 * [Build and Deploy Your First Decentralized App with Etherem](https://www.udemy.com/course/your-first-decentralized-app/) - Gary Simon (Udemy)
 * [CryptoZombies.io](https://cryptozombies.io) - CleverFlare, Loom Network
 * [Ethereum Developer Bootcamp](https://www.alchemy.com/university/courses/ethereum) - Alchemy University
+* [Free Blockchain Development Courses](https://www.youtube.com/playlist?list=PLS5SEs8ZftgUNcUVXtn2KXiE1Ui9B5UrY) - Dapp University
 * [Learn Blockchain](https://www.youtube.com/playlist?list=PLlp912GlUiC1xPnwVmKgIiuMERetMwre9) - Roomyan
+* [Smart Contract Security](https://updraft.cyfrin.io/courses/security) - Cyfrin Updraft
 * [Solidity, Blockchain, and Smart Contract Course – Beginner to Expert Python Tutorial](https://www.youtube.com/watch?v=M576WGiDBdQ) - Patrick Collins (freeCodeCamp.org)
 
 
@@ -343,15 +349,14 @@
 * [C Programming 2021: Master The Basics!](https://www.udemy.com/course/c-programming-2019-master-the-basics/) - Ali Badran (Udemy)
 * [C Programming and Assembly Language](https://www.youtube.com/playlist?list=PLyqSpQzTE6M8O9Oy9t-yhiAUXOi-rmTp_) - NPTEL NOC IITM
 * [C Programming for Beginners](https://www.youtube.com/playlist?list=PL98qAXLA6aftD9ZlnjpLhdQAOFI8xIB6e) - Programiz
-* [C Programming Tutorial](https://www.youtube.com/playlist?list=PL_RGaFnxSHWoGzOXqtKeM71OLpvZbuU0P)
+* [C Programming Tutorial](https://www.youtube.com/playlist?list=PL_RGaFnxSHWoGzOXqtKeM71OLpvZbuU0P) - The Bad Tutorials
 * [C Programming Tutorial for Beginners](https://www.youtube.com/watch?v=KJgsSFOSQv0) - Mike Dane (freeCodeCamp)
 * [C Programming Tutorial for Beginners](https://www.youtube.com/playlist?list=PLsyeobzWxl7oBxHp43xQTFrw9f1CDPR6C) - Telusko
 * [C Programming Tutorials for Beginners (Complete Series)](https://www.youtube.com/playlist?list=PLS1QulWo1RIZlA5oGczk8kY7Eenytc33s) - ProgrammingKnowledge
-* [C Programming Tutorials for Beginners (with notes & practice questions)](https://www.youtube.com/watch?v=irqbmMNs2Bo) - Apna College
 * [C tutorial for beginners](https://www.youtube.com/playlist?list=PLZPZq0r_RZOOzY_vR4zJM32SqsSInGMwe) - Bro Code
 * [Learn C Programming](https://www.programiz.com/c-programming) - Programiz (HTML)
 * [Programming in C](https://www.youtube.com/playlist?list=PLdo5W4Nhv31a8UcMN9-35ghv8qyFWD9_S) - Jenny's lectures CS/IT NET&JRF
-* [The Arduino Platform and C Programming](https://www.coursera.org/learn/arduino-platform)
+* [The Arduino Platform and C Programming](https://www.coursera.org/learn/arduino-platform) - Ian Harris (Coursera)
 
 
 ### <a id="csharp"></a>C\#
@@ -401,7 +406,7 @@
 
 ### Clojure
 
-* [Clojure language Tutorial - for Beginners](https://www.youtube.com/watch?v=zFPiPBIkAcQ)
+* [Clojure language Tutorial - for Beginners](https://www.youtube.com/watch?v=zFPiPBIkAcQ) - it learning
 * [Clojure Tutorial](https://www.youtube.com/watch?v=ciGyHkDuPAE) - Derek Banas
 * [Functional Programming with Clojure](http://mooc.fi/courses/2014/clojure/)
 * [Poetry of Programming - Clojure for Beginners](https://www.youtube.com/playlist?list=PLI-mrGTUXmHXeKhy6UGdDxIKwM8L4MTbq) - Attila EGRI-NAGY
@@ -491,12 +496,12 @@
 * [Foundations of Cryptography](https://www.youtube.com/playlist?list=PLgMDNELGJ1CbdGLyn7OrVAP-IKg-0q2U2) - NPTEL  Indian Institute of Science, Bengaluru
 * [Introduction to Cryptography](https://open.ruhr-uni-bochum.de/en/lernangebot/introduction-cryptography) (Christof Paar)
 * [Stanford Cryptography I](https://www.coursera.org/course/crypto) - Dan Boneh
-* [Stanford Cryptography II](https://www.coursera.org/course/crypto2) - Dan Boneh
 
 
 ### Cuda
 
 * [CUDA Crash Course](https://www.youtube.com/playlist?list=PLxNPSjHT5qvtYRVdNN1yDcdSl39uHV_sU) - CoffeeBeforeArch
+* [CUDA Programming Course – High-Performance Computing with GPUs](https://www.youtube.com/watch?v=86FAWCzIe_4&t=2s) - Elliot Arledge (FreeCodeCamp)
 * [CUDA Tutorials](https://www.youtube.com/playlist?list=PLKK11Ligqititws0ZOoGk3SW-TZCar4dK) - Creel
 * [Intro to Parallel Programming Using CUDA to Harness the Power of GPUs](https://www.udacity.com/course/intro-to-parallel-programming--cs344) (Udacity)
 
@@ -560,10 +565,11 @@
 * [Database Management Systems](https://www.youtube.com/playlist?list=PLBlnK6fEyqRi_CUQ-FXxgzKQ1dwr_ZJWZ) - Neso Academy
 * [Database Systems](http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-830-database-systems-fall-2010/) (MIT's opencourseware)
 * [Database Systems - Cornell University Course (SQL, NoSQL, Large-Scale Data Analysis)](https://www.youtube.com/watch?v=4cWkVbC2bNE) - Professor Immanuel Trummer, freeCodeCamp.org
+* [Databases in Depth](https://www.youtube.com/playlist?list=PLliXPok7ZonnALnedG5doBOSCXlU14yJF) - Keerti Purswani
 * [DBMS for GATE Exams](https://www.youtube.com/playlist?list=PLWPirh4EWFpGrpcMfZ6UcdI786QdtSxV8) - Tutorialspoint
-* [DBMS Placement Series](https://www.youtube.com/playlist?list=PLDzeHZWIZsTpukecmA2p5rhHM14bl2dHU) - CodeHelp by Babbar>>>>>>> main
 * [DML Server Administration](https://alison.com/course/databases-dml-statements-and-sql-server-administration-revised) (Alison)
 * [Introduction to Databases](https://lagunita.stanford.edu/courses/Engineering/db/2014_1/about) (Stanford University)
+* [Introduction to the Fundamentals of Databases](https://www.simplilearn.com/learn-basics-of-databases-free-course-skillup) (Simplilearn)
 * [Learn SQL Basic for Data Science Specialisation](https://www.coursera.org/specializations/learn-sql-basics-data-science#about) (Coursera)
 
 
@@ -616,6 +622,7 @@
 * [Introduction to Reinforcement learning with David Silver](https://www.youtube.com/playlist?list=PLqYmG7hTraZBiG_XpjnPrSNw-1XQaM_gB) - David Silver
 * [MIT 6.S094: Deep Learning for Self-Driving Cars](https://selfdrivingcars.mit.edu)
 * [MIT 6.S191: Introduction to Deep Learning](http://introtodeeplearning.com) - Alexander Amini, Ava Soleimany
+* [Neuromatch Academy: Deep Learning](https://deeplearning.neuromatch.io/tutorials/intro.html) - Neuromatch Academy
 * [NYU Deep Learning SP21](https://www.youtube.com/playlist?list=PLLHTzKZzVU9e6xUfG10TkTWApKSZCzuBI) Alfredo Canziani
 * [NYU Deep Learning SP22](https://www.youtube.com/playlist?list=PLLHTzKZzVU9f3kmEta5dlkMXgtD1LxHzT) - Alfredo Canziani
 * [Practical Deep Learning For Coders taught](http://www.fast.ai) - Jeremy Howard
@@ -645,6 +652,7 @@
 * [Ansible for the Absolute Beginner - DevOps](https://www.udemy.com/course/ansible-for-the-absolute-beginner-devops) -  Vijay Patel (Udemy)
 * [AWS Provisioning using Ansible with real-time examples](https://www.udemy.com/course/aws-provisioning-using-ansible-with-real-time-examples) - Narendra P (Udemy)
 * [DevOps: Beginner's Guide To Automation With Ansible](https://www.udemy.com/course/devops-beginners-guide-to-automation-with-ansible) - TetraNoodle Team, Manuj Aggarwal (Udemy)
+* [Getting Started with Ansible](https://www.youtube.com/playlist?list=PLT98CRl2KxKEUHie1m24-wkyHpEsa4Y70) - Learn Linux TV
 * [Red Hat Ansible Automation for SAP (RH045)](https://www.udemy.com/course/red-hat-ansible-automation-for-sap) - Red Hat, Inc. (Udemy)
 * [Use Ansible with Amazon Web Services](https://www.udemy.com/course/ansible-aws) - Rohit Abraham (Udemy)
 
@@ -744,6 +752,7 @@
 * [Godot Action RPG Series](https://www.youtube.com/playlist?list=PL9FzW-m48fn2SlrW0KoLT4n5egNdX-W9a) - HeartBeast
 * [Godot Space Sidescroller Tutorial Series](https://www.youtube.com/playlist?list=PL6bQeQE-ybqAzXZlZCiRKCtu6RbkXLgmh) - PlugWorld
 * [Godot Wave Shooter Tutorials](https://www.youtube.com/playlist?list=PL6bQeQE-ybqAYoaWz_ZEE2X4wX6PhwCWR) - PlugWorld
+* [Learn Unity - Beginner's Game Development Tutorial](https://www.youtube.com/watch?v=gB1F9G0JXOo) - freeCodeCamp.org
 * [Low Poly Art For Video Games](https://www.coursera.org/learn/low-poly-art-video-games) - Andrew Dennis, Ricardo Guimaraes (Coursera)
 * [Make a Platform Shooter - GameMaker Studio 2](https://www.youtube.com/playlist?list=PL9FzW-m48fn3Ya8QUTsqU-SU6-UGEqhx6) - HeartBeast
 * [Multiplayer Shooter Tutorials - Godot](https://www.youtube.com/playlist?list=PL6bQeQE-ybqDmGuN7Nz4ZbTAqyCMyEHQa) - PlugWorld
@@ -835,7 +844,7 @@
 * [Conquering freeCodeCamp's Curriculum](https://www.youtube.com/playlist?list=PLgBH1CvjOA62oNEVgz-dECiCZCE_Q3ZFH) - Florin Pop
 * [CSS Flexbox - Mastering the Basics](https://www.udemy.com/css-flexbox-mastering-the-basics/) - Vishwas Gopinath (Udemy)
 * [CSS Grid](https://cssgrid.io) - Wesbos
-* [CSS Tutorial](https://www.youtube.com/playlist?list=PL_RGaFnxSHWqMH9a9DY8LFKrJ5NJCFHHe)
+* [CSS Tutorial](https://www.youtube.com/playlist?list=PL_RGaFnxSHWqMH9a9DY8LFKrJ5NJCFHHe) - The Bad Tutorials
 * [CSS Tutorials](https://www.youtube.com/playlist?list=PLDyQo7g0_nsUjf046cCHKJ16U1SoXrElZ) - Dev Ed
 * [CSS3 tutorial for beginners \| Learn CSS3](https://www.udemy.com/course/css3-tutorial-for-beginners-learn-css3/) - Udemy
 * [Flexbox in 30 Days](https://github.com/samanthaming/Flexbox30) - Samantha Ming
@@ -881,6 +890,7 @@
 * [Complete Bootstrap Crash Course \| Bootstrap 4 Tutorial](https://www.youtube.com/watch?v=ZfRn9VJzdGA) - Julio Codes
 * [Gentle Introduction to Bootstrap 5 for Beginners](https://www.youtube.com/playlist?list=PLErOmyzRKOCr47pRGOswKcgzGyetNRdHZ) - Deborah Kurata
 * [Introduction to Bootstrap - A Tutorial](https://www.classcentral.com/course/edx-introduction-to-bootstrap-a-tutorial-3338) - Microsoft via edX (Class Central)
+* [Learn Bootstrap](https://v2.scrimba.com/learn-bootstrap-c0o) - Scrimba 
 * [Learn Bootstrap 4 for free](https://scrimba.com/learn/bootstrap4) - Neil Rowe (Scrimba)
 * [Learn Bootstrap 4 in this free 10-part course](https://www.freecodecamp.org/news/want-to-learn-bootstrap-4-heres-our-free-10-part-course-happy-easter-35c004dc45a4/) - Per Harald Borgen (Freecodecamp)
 * [Learn Bootstrap 5 and SASS by Building a Portfolio Website - Full Course](https://www.youtube.com/watch?v=iJKCj8uAHz8) - Patrick Muriungi, freeCodeCamp
@@ -902,6 +912,11 @@
 * [Unit Testing in iOS](https://www.youtube.com/playlist?list=PLMRqhzcHGw1ZLLvLwuW8AP3n-A3nsRn9P) - CodeWithChris
 
 
+### IDE and editors
+
+* [Vim As Your Editor](https://www.youtube.com/playlist?list=PLm323Lc7iSW_wuxqmKx_xxNtJC_hJbQ7R) - ThePrimeagen
+
+
 ### Java
 
 * [Advanced Software Construction in Java](https://openlearninglibrary.mit.edu/courses/course-v1:MITx+6.005.2x+1T2017/about) - MIT Open Learning Library
@@ -980,7 +995,7 @@
 * [JavaScript Leetcode](https://www.youtube.com/playlist?list=PLRKOqqzwh75hcG_D4xjUgbg_BAF3MLtoh) - Endeavour Monk
 * [JavaScript Mini Course 2020](https://www.udemy.com/course/javascript-essentials-mini-course/) - Kalob Taulien (Udemy)
 * [JavaScript Projects For Beginners \| Easy To Advance](https://youtube.com/playlist?list=PL9bD98LkBR7P16BndaNtP4x6Wf5Ib85Hm) - Tech2 etc
-* [JavaScript Tutorial for Beginners](https://www.youtube.com/playlist?list=PLK8cqdr55Tsva3vMrKZ9u2eAuGo0wIJ46) - Code With Harry
+* [JavaScript Tutorial for Beginners](https://www.youtube.com/playlist?list=PLK8cqdr55Tsva3vMrKZ9u2eAuGo0wIJ46) - ProgrammingWithHarry
 * [JavaScript Tutorial for Beginners](https://www.youtube.com/playlist?list=PL4cUxeGkcC9i9Ae2D9Ee1RvylH38dKuET) - The Net Ninja
 * [JavaScript Tutorial for beginners](https://www.youtube.com/watch?v=W6NZfCO5SIk) - Moshfegh Hamedani (Programming with Mosh)
 * [JavaScript Tutorial for Beginners - Full Course in 8 Hours [2020]](https://www.youtube.com/watch?v=Qqx_wzMmFeA) - Clever Programmer
@@ -1066,11 +1081,13 @@
 #### Next.js
 
 * [Complete Next.js Course For Beginners](https://www.youtube.com/playlist?list=PLynWqC6VC9KOvExUuzhTFsWaxnpP_97BD) - Daily Tuition
+* [Learn Next.js](https://nextjs.org/learn/dashboard-app) - Vercel (HTML)
 * [Master Next JS by Building Real Projects](https://www.youtube.com/playlist?list=PL6QREj8te1P7gixBDSU8JLvQndTEEX3c3) - JavaScript Mastery
 * [Mastering Next.js](https://masteringnextjs.com)
 * [Next.js 14 Beginner Roadmap & Course](https://www.youtube.com/playlist?list=PLrnPJCHvNZuBH7pax5p75JDNblo8rpl00) - Coding in Flow
 * [Next.js for Beginners - Full Course](https://www.youtube.com/watch?v=1WmNXEVia8I) - Kapehe (FreeCodeCamp)
 * [Next.js Tutorial for Beginners](https://www.youtube.com/playlist?list=PLC3y8-rFHvwgC9mj0qv972IO5DmD-H0ZH) - Codevolution
+* [Next.js Tutorial for Beginners](https://www.youtube.com/playlist?list=PL4cUxeGkcC9g9gP2onazU5-2M-AzA8eBw) - Net Ninja
 * [Next.js Tutorials for Beginners](https://www.youtube.com/playlist?list=PL0Zuz27SZ-6Pk-QJIdGd1tGZEzy9RTgtj) - Dave Gray
 
 
@@ -1078,6 +1095,7 @@
 
 * [A Beginner's Guide to Node.js](https://www.udemy.com/course/a-beginners-guide-to-nodejs) - DSC VIT Powered by Google Developers, Md Hishaam Akhtar (Udemy)
 * [Beginner's Series to: Node.js](https://www.youtube.com/playlist?list=PLlrxD0HtieHje-_287YJKhY8tDeSItwtg) - Microsoft Developer
+* [Build a Bank App ...From Scratch](https://www.youtube.com/playlist?list=PL8YhozOQUteYwa13S-PGUNMM37gv7gEVq) - Ugwu Somto
 * [Build JavaScript applications with Node.js](https://learn.microsoft.com/en-us/training/paths/build-javascript-applications-nodejs) - Microsoft Learn
 * [Building a RESTful API with Node.js](https://www.youtube.com/playlist?list=PL55RiY5tL51q4D-B63KBnygU6opNPFk_q) - Academind
 * [Data brokering with Node.js: Process data at the speed of technology](https://heynode.com) - Osio Labs Inc. *(signup requested, not required)*
@@ -1176,6 +1194,7 @@
 * [Introduction to TypeScript](https://www.udemy.com/typescript/) - Daniel Stern (Udemy)
 * [Learn TypeScript](https://www.codecademy.com/learn/learn-typescript) - (CodeAcademy)
 * [Learn TypeScript](https://scrimba.com/learn/typescript) - Ania Kubow (Scrimba)
+* [Typescript](https://www.youtube.com/playlist?list=PLRAV69dS1uWRPSfKzwZsIm-Axxq-LxqhW) - Hitesh Choudhary
 * [TypeScript Course for Beginners- Learn TypeScript from Scratch!](https://www.youtube.com/watch?v=BwuLxPH8IDs) - Academind
 * [TypeScript Fast Crash Course](https://www.udemy.com/typescript-fast-crash-course/) - Edwin Diaz, Coding Faculty Solutions (Udemy)
 * [TypeScript Tutorial for Beginners - 2022](https://www.youtube.com/watch?v=d56mG7DezGs) - Programming with Mosh
@@ -1219,7 +1238,9 @@
 ### Kotlin
 
 * [Advanced Android with Kotlin](https://www.udacity.com/course/advanced-android-with-kotlin--ud940) (Udacity)
+* [Android Development Full Tutorial 2023 \| Kotlin](https://www.youtube.com/watch?v=9-pFPGAOSZQ) - Scaler
 * [Android Kotlin Tutorial: Create Android Apps using Kotlin](https://www.youtube.com/playlist?list=PLlxmoA0rQ-Lw5k_QCqVl3rsoJOnb_00UV) - Sriyank Siddhartha
+* [Android with kotlin](https://www.youtube.com/playlist?list=PLlxmoA0rQ-Lw5k_QCqVl3rsoJOnb_00UV) - Smartherd
 * [Developing Android Apps with Kotlin](https://www.udacity.com/course/developing-android-apps-with-kotlin--ud9012) (Udacity)
 * [Kotlin Bootcamp for Programmers](https://www.udacity.com/course/kotlin-bootcamp-for-programmers--ud9011) - Aleks Haecky, Asser Samak, Sean McQuillan (Udacity)
 * [Kotlin Bootcamp for Programmers](https://developer.android.com/courses/kotlin-bootcamp/overview) - Developer Android (Google)
@@ -1294,7 +1315,8 @@
 * [Machine Learning — Andrew Ng, Stanford University](https://www.youtube.com/playlist?list=PLLssT5z_DsK-h9vYZkQkYNWcItqhlRJLN) - Andrew Ng
 * [Machine Learning Course for Beginners](https://www.youtube.com/watch?v=NWONeJKn6kc) - freeCodeCamp.org
 * [Machine Learning Course With Python](https://www.youtube.com/playlist?list=PLfFghEzKVmjsNtIRwErklMAN8nJmebB0I) - Siddhardhan
-* [Machine Learning Recipes with Josh Gordon](https://www.youtube.com/playlist?list=PLOU2XLYxmsIIuiBfYad6rFYQU_jL2ryal)
+* [Machine Learning Foundations](https://www.youtube.com/playlist?list=PLOU2XLYxmsII9mzQ-Xxug4l2o04JBrkLV) - Google for Developers
+* [Machine Learning Recipes with Josh Gordon](https://www.youtube.com/playlist?list=PLOU2XLYxmsIIuiBfYad6rFYQU_jL2ryal) - Google for Developers
 * [Machine Learning Specialization](https://www.coursera.org/specializations/machine-learning-introduction) - Andrew Ng, Eddy Shyu, Aarti Bagul, Geoff Ladwig (Coursera)
 * [Machine Learning Tutorial in Python](https://www.youtube.com/playlist?list=PL9ooVrP1hQOHUfd-g8GUpKI3hHOwM_9Dn) - edureka!
 * [Machine Learning Tutorial Python \| Machine Learning For Beginners](https://www.youtube.com/playlist?list=PLeo1K3hjS3uvCeTYTeyfe0-rN5r8zn9rw) - Dhaval Patel
@@ -1330,7 +1352,7 @@
 * [MATLAB Onramp](https://matlabacademy.mathworks.com/details/matlab-onramp/gettingstarted) - Renee Bach
 * [MATLAB Programming for Numerical Computation NPTEL](https://www.youtube.com/playlist?list=PLRWKj4sFG7-6_Xr9yqg6SMr_F80KdFVhN) - Niket Kaisare NPTEL
 * [MATLAB Programming Techniques](https://matlabacademy.mathworks.com/details/matlab-programming-techniques/mlpr) - Matt Tearle
-* [MIT 18.S997 Introduction to MATLAB Programming](http://ocw.mit.edu/courses/mathematics/18-s997-introduction-to-matlab-programming-fall-2011/)
+* [MIT 18.S997 Introduction to MATLAB Programming](http://ocw.mit.edu/courses/mathematics/18-s997-introduction-to-matlab-programming-fall-2011/) - MIT OpenCourseWare
 
 
 #### Simulink
@@ -1435,7 +1457,7 @@
 
 ### Processing
 
-* [Learning Processing: A Beginner's Guide to Programming Images, Animation, and Interaction](https://www.youtube.com/c/TheCodingTrain/playlists?view=50&sort=dd&shelf_id=10) - The Coding Train
+* [Learning Processing: A Beginner's Guide to Programming Images, Animation, and Interaction](https://thecodingtrain.com/tracks/learning-processing) - The Coding Train
 
 
 ### Python
@@ -1480,6 +1502,7 @@
 * [Python Course](https://www.python-course.eu)
 * [Python Course from scratch](https://scrimba.com/playlist/pNpZMAB) - Olaf Paulson (scrimba)
 * [Python Data Analysis](https://www.coursera.org/learn/python-analysis) - Scott Rixner, Joe Warren (Coursera)
+* [Python for Beginners](https://alison.com/course/python-for-beginners) - Merul Dhiman (Alison)
 * [Python for Beginners](https://www.youtube.com/playlist?list=PLUaB-1hjhk8GHKfndKjyDMHPg_HlQ4vpK) - Alex The Analyst
 * [Python for Beginners (Full Course)](https://www.youtube.com/playlist?list=PLsyeobzWxl7poL9JTVyndKe62ieoN-MZ3) - Telusko
 * [Python for Data Science, AI & Development](https://www.coursera.org/learn/python-for-applied-data-science-ai) - Joseph Santarcangelo (Coursera)
@@ -1551,6 +1574,7 @@
 * [Introduction to R](https://www.datacamp.com/courses/free-introduction-to-r) - DataCamp
 * [R Basics - R Programming Language Introduction](https://www.udemy.com/course/r-basics/) - R-Tutorials Training (Udemy)
 * [R Programming](https://www.coursera.org/course/rprog)
+* [R Programming For Beginners](https://www.youtube.com/playlist?list=PLEiEAq2VkUUKAw0aAJ1W4jpZ1q9LpX4yG) - Simplilearn
 * [R Programming Tutorial](https://www.youtube.com/watch?v=_V8eKsto3Ug) - Barton Poulson (freeCodeCamp)
 * [R Tutorial For Beginners \| Edureka](https://www.youtube.com/watch?v=fDRa82lxzaU) - Edureka!
 
@@ -1610,6 +1634,7 @@
 ### Scala
 
 * [Functional Programming in Scala Specialization](https://www.coursera.org/course/reactive)
+* [Scala at Light Speed](https://www.youtube.com/playlist?list=PLmtsMNDRU0BxryRX4wiwrTZ661xcp6VPM) - Rock the JVM
 
 
 ### Security
diff --git a/courses/free-courses-hi.md b/courses/free-courses-hi.md
index 892f0f459..b1ccf1569 100644
--- a/courses/free-courses-hi.md
+++ b/courses/free-courses-hi.md
@@ -30,11 +30,13 @@
 * [Golang](#golang)
 * [HTML and CSS](#html-and-css)
     * [Bootstrap](#bootstrap)
+    * [Material UI](#material-ui)
     * [Tailwind CSS](#tailwind-css)
 * [iOS](#ios)
 * [Java](#java)
     * [Spring Boot](#spring-boot)
 * [JavaScript](#javascript)
+    * [GSAP](#gsap)
     * [jQuery](#jquery)
     * [Next.js](#nextjs)
     * [Node.js](#nodejs)
@@ -79,6 +81,7 @@
 * [Binary Trees - by LoveBabbar](https://www.youtube.com/playlist?list=PLDzeHZWIZsTo87y1ytEAqp7wYlEP3nner) - CodeHelp - by Babbar
 * [Binary Trees - Level 1](https://www.youtube.com/playlist?list=PL-Jc9J83PIiHYxUk8dSu2_G7MR1PaGXN4) - Pepcoding
 * [Bit Manipulation - Level 2](https://www.youtube.com/playlist?list=PL-Jc9J83PIiFJRioti3ZV7QabwoJK6eKe) - Pepcoding
+* [Complete C++ DSA Course \| Data Structures & Algorithms Playlist](https://www.youtube.com/playlist?list=PLfqMhTWNBTe137I_EPQd34TsgV6IO55pt) - Apna College
 * [Complete C++ Placement DSA Course](https://www.youtube.com/playlist?list=PLDzeHZWIZsTryvtXdMr6rPh4IDexB5NIA) - CodeHelp by Babbar
 * [Data Structures and Algorithms Course in Hindi](https://www.youtube.com/playlist?list=PLu0W_9lII9ahIappRPN0MCAgtOu3lQjQi) - CodeWithHarry
 * [Data Structures and Algorithms for GATE — Complete Playlist](https://www.youtube.com/playlist?list=PLC36xJgs4dxFCQVvjMrrjcY3XrcMm2GHy) - Gate CSE lectures by Amit Khurana
@@ -112,6 +115,7 @@
 ### Android
 
 * [Android App Development Course (Beginner to Advanced) \| WsCube Tech 2.0](https://www.youtube.com/playlist?list=PLjVLYmrlmjGdDps6HAwOOVoAtBPAgIOXL) - WsCube Tech
+* [Android App Development Course in 2024](https://www.youtube.com/playlist?list=PLTV_nsuD2lf4UCTV6xwvNPvFdmCNKyhc8) - Saumya Singh
 * [Android Development Tutorial for Beginners](https://www.youtube.com/playlist?list=PLUcsbZa0qzu3Mri2tL1FzZy-5SX75UJfb) - Anuj Bhaiya
 * [Android Development Tutorials in Hindi](https://www.youtube.com/playlist?list=PLu0W_9lII9aiL0kysYlfSOUgY5rNlOhUd) - CodeWithHarry
 * [Android Development With KOTLIN \| Android App Development Course In Hindi](https://www.youtube.com/playlist?list=PL6Fr59UplGvL7q7P3Hg6nYzS45gld-CCI) - Zain Farhan
@@ -133,12 +137,15 @@
 
 * [Arduino Programming In Hindi (Full Playlist)](https://www.youtube.com/watch?v=KOa1aVijhao) - SBS online classes
 * [Arduino Programming Series (हिंदी में)](https://www.youtube.com/playlist?list=PLV3C-t_tgjGFyXP_-AF37AoIuxM9jzELM) - Engineers & Electronics
+* [Arduino project in hindi](https://www.youtube.com/playlist?list=PLLpp1gWWec-Fj93mz9kfflp_ovplKCpR4) -  Praveen Innovation Lab
 * [Complete Arduino Tutorial Learn Arduino Programming in Hindi](https://www.youtube.com/playlist?list=PLg2KtP8cgLjzNu5G2bQQLxFeBiqk8IO0s) - Techtalks With Vivek
+* [Learn Arduino in Hindi](https://www.youtube.com/playlist?list=PLVl__93X7ZlxnDtEY1_ibH-fECYEAKAQC) - TEKNOISTIX
 
 
 ### Artificial Intelligence
 
 * [Artificial Intelligence (Complete Playlist)](https://www.youtube.com/playlist?list=PLxCzCOWd7aiHGhOHV-nwb0HR5US5GFKFI) - Gate Smashers
+* [Artificial Intelligence Lectures Hindi](https://www.youtube.com/playlist?list=PLV8vIYTIdSnYsdt0Dh9KkD9WFEi7nVgbe) - Easy Engineering Classes
 * [Generative AI Series - Showcasing Generative AI By Building Projects](https://www.youtube.com/playlist?list=PLu0W_9lII9aiS4rUVp2jXwIvCruo27sG6) - CodeWithHarry
 * [Playlist to Artificial Intelligence ](https://www.youtube.com/playlist?list=PLPIwNooIb9vgB1DQEftkKA3qOdeC4vonA) - Perfect Computer Engineer
 * [Prompt Engineering Full Course in Hindi (beginner to Master)](https://www.youtube.com/playlist?list=PLyz4Eb45WBQ02Md7BiIO1sUsKTs8GcWKS) - EduExpress
@@ -177,12 +184,14 @@
 * [C Language Tutorial For Beginners In Hindi (With Notes)](https://www.youtube.com/watch?v=ZSPZob_1TOk) - CodeWithHarry
 * [C Language Tutorial in Hindi](https://www.youtube.com/playlist?list=PLmRclvVt5DtksgReOH3s7R1_cb1QA8vrb) - codeitup
 * [C Language Tutorials In Hindi](https://www.youtube.com/playlist?list=PLu0W_9lII9aiXlHcLx-mDH1Qul38wD3aR) - CodeWithHarry
+* [C Programming Course](https://www.youtube.com/playlist?list=PLxgZQoSe9cg1drBnejUaDD9GEJBGQ5hMt) - College Wallah
 * [C Programming Tutorials](https://www.youtube.com/playlist?list=PLiOa6ike4WAHH3HyPUu6pUG-r0LApvW-l) - Vikas Pandey, easytuts4you
 
 
 ### <a id="csharp"></a>C\#
 
 * [Basic C# Programming Tutorials](https://www.youtube.com/playlist?list=PLCqWuVe6WFLLmMTO44hpYKnptJ6765skH) -  Sunny Games & Technology
+* [C# Programming Complete in Hindi By Arvind](https://www.youtube.com/playlist?list=PLOd2apPiwn-Z8GJiZs5HYb7HoiVvTV9H7) - Sarkar Study Waves Education
 * [C# Programming language (Console Applications)](https://www.youtube.com/playlist?list=PLX07l0qxoHFLZftsVKyj3k9kfMca2uaPR) - Learning Never Ends 
 * [C# Tutorial In Hindi](https://www.youtube.com/watch?v=SuLiu5AK9Ps) - CodeWithHarry
 * [C# Tutorial in Hindi for Beginners](https://www.youtube.com/playlist?list=PLV8vIYTIdSnYTYr0bmIbfzYii0YQSPocB) - Easy Engineering Classes
@@ -198,7 +207,6 @@
 ### <a id="cpp"></a>C++
 
 * [C++ and DSA Foundation Course](https://www.youtube.com/playlist?list=PLxgZQoSe9cg0df_GxVjz3DD_Gck5tMXAd) - College Wallah
-* [C++ Basics in One Shot - Strivers A2Z DSA Course - L1](https://www.youtube.com/watch?v=EAR7De6Goz4) - Take U Forward
 * [C++ Full Course \| C++ Tutorial \| Data Structures & Algorithms](https://www.youtube.com/playlist?list=PLfqMhTWNBTe0b2nM6JHVCnAkhQRGiZMSJ) - Apna College
 * [C++ Full Course \|Complete C++ Placement DSA Course\| Data Structures & Algorithms](https://www.youtube.com/playlist?list=PLDzeHZWIZsTryvtXdMr6rPh4IDexB5NIA) - CodeHelp - by Babbar
 * [C++ Programming in Hindi](https://www.mygreatlearning.com/academy/learn-for-free/courses/c-programming-in-hindi1) - Bharani Akella (My Great Learning)
@@ -210,6 +218,7 @@
 * [C++ Tutorial for Beginners \| C++ Tutorials In Hindi](https://www.youtube.com/playlist?list=PLmGElG-9wxc8VMy1nNHDQldH2dU8Y08s7) - Manish Gehlot, WsCube Tech Programming Concepts
 * [C++ Tutorial In Hindi](https://www.youtube.com/playlist?list=PLhvdldYcnZMl3Smc6ANF6rO56ORgwb46g) - Coding Wallah Sir
 * [C++ Tutorials In Hindi](https://www.youtube.com/playlist?list=PLu0W_9lII9agpFUAlPFe_VNSlXW5uE0YL) - CodeWithHarry
+* [Chai aur C++](https://www.youtube.com/playlist?list=PLu71SKxNbfoCPfgKZS8UE0MDuwiKvL8zi) - Chai aur Code
 * [The Complete C++ Course \| Hindi](https://www.youtube.com/playlist?list=PLLYz8uHU480j37APNXBdPz7YzAi4XlQUF) - Saurabh Shukla
 
 
@@ -218,9 +227,8 @@
 * [Cloud Computing](https://www.youtube.com/playlist?list=PLYwpaL_SFmcCyQH0n9GHfwviu6KeJ46BV) - 5 Minutes Engineering
 * [Cloud Computing](https://www.youtube.com/playlist?list=PLDN4rrl48XKqNsrDogCpHsul3UHMC0Wdq) - Abdul Bari
 * [Cloud Computing Course Free](https://www.youtube.com/watch?v=lae0mfHBSjk) - Intellipaat
-* [Cloud Computing Full Course In 11 Hours](https://www.youtube.com/watch?v=2LaAJq1lB1Q) - Edureka
 * [Cloud Computing Tutorial](https://www.youtube.com/playlist?list=PL-JvKqQx2AtfQ8cGyKsFE7Tj2FyB1yCkd) - University Academy
-* [NPTEL Cloud Computing Course](https://www.youtube.com/playlist?list=PLShJJCRzJWxhz7SfG4hpaBD5bKOloWx9J) - NPTEL  
+ 
 
 
 #### AWS
@@ -243,6 +251,7 @@
 
 ### Compiler Design
 
+* [Compiler Design](https://www.youtube.com/playlist?list=PL1QH9gyQXfguPNDTsnG90W2kBDQpYLDQr) - The Gatehub
 * [Compiler Design](https://www.youtube.com/playlist?list=PL9FuOtXibFjVR-87LcU-DS-9TJcbG97_p) - Abhishek Sharma
 * [Compiler Design](https://www.youtube.com/playlist?list=PL23dd-8zssJBiyntds3X1sVWUDeb0Aa1N) - Start Practicing
 * [Compiler Design (Complete Playlist)](https://www.youtube.com/playlist?list=PLmXKhU9FNesSmu-_DKC7APRoFkaQvGurx) - KnowledgeGATE by Sanchit Sir
@@ -279,7 +288,6 @@
 * [Complete C++ Placement DSA Course](https://www.youtube.com/playlist?list=PLDzeHZWIZsTryvtXdMr6rPh4IDexB5NIA) - CodeHelp by Babbar
 * [Data Structure And Algorithms Course \| DSA Tutorial in Hindi](https://www.youtube.com/playlist?list=PLmGElG-9wxc9Us6IK6Qy-KHlG_F3IS6Q9) - ScoreShala
 * [Data Structure Programs \| Hindi](https://www.youtube.com/playlist?list=PLsFNQxKNzefJU-Sj__mljvrmJHZVKWbEm) - Saurabh Shukla
-* [Data Structures and Algorithms](https://www.youtube.com/playlist?list=PLdo5W4Nhv31bbKJzrsKfMpo_grxuLl8LU) - Jenny's Lectures CS IT
 * [Data Structures and Algorithms Course in Hindi](https://www.youtube.com/playlist?list=PLu0W_9lII9ahIappRPN0MCAgtOu3lQjQi) - CodeWithHarry
 * [DSA-One Course- The Complete Data Structure and Algorithms Course](https://www.youtube.com/playlist?list=PLUcsbZa0qzu3yNzzAxgvSgRobdUUJvz7p) - Anuj Bhaiya
 * [Functions and Arrays - Level 1](https://www.youtube.com/playlist?list=PL-Jc9J83PIiHOV7lm2uSw4ZiVsIRsGS6r) - Pepcoding
@@ -287,7 +295,6 @@
 * [Heap Playlist Interview Questions Coding Tutorials Data Structures](https://youtube.com/playlist?list=PL_z_8CaSLPWdtY9W22VjnPxG30CXNZpI9) - Aditya Verma 
 * [Java + Data Structures + Algorithms](https://www.youtube.com/playlist?list=PLKKfKV1b9e8ps6dD3QA5KFfHdiWj9cB1s) - Apni Kaksha
 * [Java + DSA](https://www.youtube.com/playlist?list=PLfqMhTWNBTe3LtFWcvwpqTkUSlB32kJop) - Apna College
-* [Java + DSA + Interview Preparation Course](https://youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ) - Kunal Kushwaha
 * [Linked Lists - Level 1](https://www.youtube.com/playlist?list=PL-Jc9J83PIiF5VZmktfqW6WVU1pxBF6l_) - Pepcoding
 * [Simplified DSA with FRAZ](https://www.youtube.com/playlist?list=PLKZaSt2df1gy75J3irj89a2vSGqeQdtDA) - Fraz
 * [Stack Playlist \| Interview Questions \| Coding \| Tutorials \| Data Structures](https://www.youtube.com/playlist?list=PL_z_8CaSLPWdeOezg68SKkeLN4-T_jNHd) - Aditya Verma
@@ -298,7 +305,6 @@
 * [3.1 DBMS In Hindi (Complete Playlist)](https://www.youtube.com/playlist?list=PLmXKhU9FNesR1rSES7oLdJaNFgmuj0SYV) - Knowledge Gate
 * [Database Management System (DBMS)](https://www.youtube.com/playlist?list=PLrjkTql3jnm-CLxHftqLgkrZbM8fUt0vn) - Education 4u
 * [Database Management System (DBMS) in Hindi](https://www.youtube.com/playlist?list=PLAOnhLRjMTMDigfUzaAAQo7lbfScPFtHs) - Jitendra Ajmedha
-* [DBMS (Database Management System)](https://www.youtube.com/playlist?list=PLdo5W4Nhv31b33kF46f9aFjoJPOkdlsRc) - Jenny's lectures CS/IT NET&JRF
 * [DBMS (Database Management System) Complete Playlist](https://www.youtube.com/playlist?list=PLxCzCOWd7aiFAN6I8CuViBuCdJgiOkT2Y) - Gate Smashers
 * [DBMS Lectures in Hindi](https://www.youtube.com/playlist?list=PL0s3O6GgLL5dg3bZhTicr5zUITPAlZNjj) - Last moment tuitions 
 * [DBMS Placements Series 2022](https://www.youtube.com/playlist?list=PLDzeHZWIZsTpukecmA2p5rhHM14bl2dHU) - CodeHelp - by Babbar
@@ -329,7 +335,6 @@
 * [Flutter 3 tutorial in Hindi](https://youtube.com/playlist?list=PLB97yPrFwo5g-XcPlfSXSOeeby23jVAcp) - CODERS NEVER QUIT
 * [Flutter App Development](https://www.youtube.com/playlist?list=PLlvhNpz1tBvH4Wn8rMjtscK3l2pXnC9aN) - Code With Dhruv
 * [Flutter Complete Tutorial in Hindi](https://www.youtube.com/playlist?list=PLjVLYmrlmjGfGLShoW0vVX_tcyT8u1Y3E) - WsCube Tech
-* [Flutter Essential Course](https://www.youtube.com/watch?v=Wdx8vwN_nWI) - freecodecamp
 * [Flutter Series 2020](https://www.youtube.com/playlist?list=PLDzeHZWIZsTo3Cs115GXkot28i406511Y) - CodeHelp - by Babbar
 * [Flutter Tutorial For Beginners in Hindi](https://www.youtube.com/playlist?list=PLMkkZSS5OjPIwDyHHKVex6zr008U1-sWM) - Geeks Rank
 * [Flutter Widgets in Hindi](https://www.youtube.com/playlist?list=PLz7ymP4HzwSH3vAnhDWLkO2TLbwGeigl7) - Ahirlog
@@ -349,11 +354,13 @@
 
 ### Git and GitHub
 
+* [Complete git and Github course in Hindi](https://www.youtube.com/watch?v=q8EevlEpQ2A) - Chai aur Code
 * [Complete Git and GitHub Tutorial](https://www.youtube.com/watch?v=apGV9Kg7ics&t=7s) - Kunal Kushwaha
 * [Complete Git and Github Tutorials for Beginners](https://www.youtube.com/watch?v=Ez8F0nW6S-w) - Apna College
 * [Complete Git and GitHub Tutorials For Beginners In Hindi](https://www.youtube.com/playlist?list=PLzdlNxYnNoafZq1AKcqiGvj0gkzrjmgq7) - Code House
 * [Complete Git Tutorials For Beginners In Hindi](https://www.youtube.com/playlist?list=PLu0W_9lII9agwhy658ZPA0MTStKUJTWPi) - CodeWithHarry
 * [Complete Git/GitHub Tutorials In Hindi 2021](https://www.youtube.com/playlist?list=PLoxQvXKPyCeX9__PPTu2M2oeY2QJt-3JB) - Vashishth Muni Singh
+* [Git & GitHub Fundamentals in 6 Hours](https://www.youtube.com/playlist?list=PLfEr2kn3s-brBO7d9irTRvClcjiNhzczH) - Anurag Singh ProCodrr
 * [Git & GitHub Tutorial For Beginners In Hindi](https://www.youtube.com/watch?v=gwWKnnCMQ5c) - CodeWithHarry
 * [Git & GitHub Tutorial in Hindi](https://www.youtube.com/watch?v=NR_A2gCxaLE) - Edureka! Hindi
 * [Git and Github \| Complete हिंदी में (With Examples)](https://www.youtube.com/watch?v=zGq7T9gZH2k) - Knowledge Gate
@@ -370,16 +377,21 @@
 * [Go Lang Tutorials in HINDI](https://www.youtube.com/playlist?list=PL45_xGOyv4bk55CMmqH6S6vvnwKD8qifD) - Coder Singh
 * [Go programming (GoLang) Tutorial for Beginners in Hindi](https://www.youtube.com/playlist?list=PLEtkoO2np9szq1XDH1Mfr36Fg5EXh-z20) - Host Progrmming
 * [Go programming Tutorial for Beginners(Hindi)](https://www.youtube.com/playlist?list=PLgPJX9sVy92yu7If3I7GonlWA8YU1BuAk) - CS Geeks
+* [Golang Tutorial](https://www.youtube.com/playlist?list=PLXQpH_kZIxTWUe-Ee-DZEX5gfeoo4tHV6) - Coder's Gyan
 * [Let's go with golang](https://www.youtube.com/playlist?list=PLRAV69dS1uWQGDQoBYMZWKjzuhCaOnBpa) - Hitesh Choudhary
 
 
 ### HTML and CSS
 
+* [Chai aur HTML in हिन्दी](https://www.youtube.com/playlist?list=PLu71SKxNbfoDBNF5s-WH6aLbthSEIMhMI) - Chai aur Code
 * [Complete Web Dev using mern stack Love Babbar](https://www.youtube.com/playlist?list=PLDzeHZWIZsTo0wSBcg4-NMIbC0L8evLrD) - Love Babbar
+* [CSS Full Free Course by WsCube Tech](https://www.youtube.com/playlist?list=PLjVLYmrlmjGcotVRgbduK05oOMnt-9r8H) - WsCube Tech
 * [CSS Tutorial in Hindi \| Complete CSS Course For Beginners to Advanced \| Step By Step Tutorial](https://www.youtube.com/watch?v=WyxzAU3p8CE) - Vishwajeet Kumar (Tech Gun)
 * [Free Web Development Course For School Students (Grade 5 - 10) \| Certified Course By Coding Blocks Junior \| Learn HTML, CSS, Javascript](https://www.youtube.com/playlist?list=PLhLbJ9UoJCvsCXqP9yAOZpzXHhWkLBXdw) - Coding Blocks Junior
 * [Front End Development Tutorial \| Complete HTML and CSS Tutorial for Beginners (9 Hours)](https://www.youtube.com/watch?v=Eu7G0jV0ImY) - WsCube Tech
+* [Full HTML Course for Beginners in Hindi](https://www.youtube.com/playlist?list=PLfEr2kn3s-bpuh9XfcDlXP6weTISBWzvQ) - Anurag Singh ProCodrr
 * [HTML CSS & Browser APIs](https://www.youtube.com/playlist?list=PL-Jc9J83PIiHU9RkY9sfh3G64-bd0ptvC) - Pepcoding
+* [HTML Tutorial for Beginners in Hindi \| Complete HTML Course with AI + Notes + 5 Project Bundle](https://www.youtube.com/watch?v=k2DSi1zGEc8) - CodeWithHarry
 * [HTML Tutorial in Hindi \| Complete HTML Course For Beginners to Advanced](https://www.youtube.com/watch?v=QXPWs00RD3A) - Vishwajeet Kumar (Tech Gun)
 * [Sigma Web Development Course](https://youtube.com/playlist?list=PLu0W_9lII9agq5TrH9XLIKQvv0iaF2X3w&si=mGaDlsxY1dRAR1t0) - CodeWithHarry
 * [Tailwind CSS Tutorials in Hindi](https://youtube.com/playlist?list=PLu0W_9lII9ahwFDuExCpPFHAK829Wto2O&si=rTTFha3VOrpdSXU2) - CodeWithHarry
@@ -399,9 +411,17 @@
 * [Bootstrap Tutorial in Hindi With 2 Projects for Beginners \| Complete Bootstrap 5 Tutorial in Hindi](https://youtube.com/watch?v=QE5oQh63gGE) - Tech Gun
 
 
+#### Material UI
+
+* [Material UI Tutorial for Beginners in Hindi](https://www.youtube.com/playlist?list=PL8u9CiaEfFDaR0ipsKfHdnZccTm10J7-3) - Basics Adda
+* [Reactjs material ui in hindi](https://www.youtube.com/playlist?list=PL8p2I9GklV4722H3_nosmpdjNXIPuBUXm) - Code Step By Step
+
+
 #### Tailwind CSS
 
 * [Learn Tailwind CSS with Projects - Hindi](https://www.youtube.com/playlist?list=PLPppPPmk0i3h9Xs6cAknE9OODTqZD5zFe) - Do Some Coding
+* [Tailwind Course + Project](https://www.youtube.com/playlist?list=PLUcsbZa0qzu0OrMJWIuhvibOPZm_IHGTl) - Anuj Bhaiya
+* [Tailwind CSS Complete Course](https://www.youtube.com/playlist?list=PLfEr2kn3s-br05lTglbEi25A1X07cvihy) - Anurag Singh ProCodrr
 * [Tailwind CSS Complete Course - CSS Framework [Hindi] - Beginner to Advanced](https://www.youtube.com/playlist?list=PLjVLYmrlmjGfpwYhVAbiGAhFl6h8XWDV_) - WsCube Tech
 * [Tailwind css hindi](https://www.youtube.com/playlist?list=PLLCu4ndnReXLXfD-iIGBEB6_l8uF6TMNO) - NST Infotech
 * [Tailwind CSS In Hindi](https://www.youtube.com/playlist?list=PLwGdqUZWnOp3l8tWTcB7R7Bsgd86lCa8a) - Thapa Technical
@@ -460,6 +480,13 @@
 * [Web Development Course](https://www.youtube.com/playlist?list=PLfqMhTWNBTe3H6c9OGXb5_6wcc1Mca52n) - Apna College
 
 
+#### GSAP
+
+* [Animate anything with GSAP \| Complete GSAP Course](https://www.youtube.com/playlist?list=PLbtI3_MArDOnIIJxB6xFtpnhM0wTwz0x6) - Sheryians Coding School
+* [GSAP Demystified \| From Beginning to Advanced](https://www.youtube.com/playlist?list=PLbtI3_MArDOn9x8DUbc-E0t9PnvrUaPs9) - Sheryians Coding School
+* [Learning GSAP in hindi](https://www.youtube.com/playlist?list=PLf8nAOi8Z9NXGhl7m8rTWmzjyhJEuFYmF) - D.Designing
+
+
 #### jQuery
 
 * [jQuery Tutorial for beginners in Hindi 2020](https://youtube.com/playlist?list=PL-6FWL4WVVWXmWe_HnPG0rBQmmJfGsTKS) - CSEtutorials
@@ -652,6 +679,7 @@
 
 * [100 Days of Code (Hindi) - Python Course](https://replit.com/learn/code-with-harry-100-doc) - CodeWithHarry (replit)
 * [Advance Python (Hindi)](https://www.youtube.com/playlist?list=PLbGui_ZYuhijd1hUF2VWiKt8FHNBa7kGb) - Rajesh Kumar, Geeky Shows
+* [Chai aur Python](https://www.youtube.com/playlist?list=PLu71SKxNbfoBsMugTFALhdLlZ5VOqCg2s) - Chai aur Code
 * [Class 12 Board \| Python \| Computer Science](https://www.youtube.com/playlist?list=PLKKfKV1b9e8oyESqu5mrGN-eDxHdNoi_j) - Apni Kaksha
 * [Complete Python tutorial in Hindi](https://www.youtube.com/playlist?list=PLmRclvVt5DtmcLF3ywxKg692lhfD6SUOr) - codeitup
 * [Complete Python Tutorial in Hindi (2020)](https://www.youtube.com/playlist?list=PLwgFb6VsUj_lQTpQKDtLXKXElQychT_2j) - Harshit Vashisth
@@ -659,6 +687,7 @@
 * [Free Python Course For School Students (Grade7-10) Certified Course By Coding Blocks Junior](https://youtube.com/playlist?list=PLhLbJ9UoJCvumawW64knIBSJuHALx3zBE) - Coding Blocks Junior
 * [Full Python Tutorial in Hindi](https://www.youtube.com/playlist?list=PLlgLmuG_KgbZziQYQV1sdhKt-VQHUE_Yl) - Bharani Akella
 * [Intermediate/Advanced python Tutorials in Hindi](https://www.youtube.com/playlist?list=PLu0W_9lII9aiJWQ7VhY712fuimEpQZYp4) - CodeWithHarry
+* [OpenCV Full Tutorial by WsCube Tech](https://www.youtube.com/playlist?list=PLjVLYmrlmjGelmHXLZ0ukHdb-jjvG6rRm) - WsCube Tech
 * [Python](https://www.youtube.com/playlist?list=PLHjOos34ty4GYwKO-CFTdJKfVNd50tajF) - Computer Gyan Guruji
 * [Python For Beginners](https://youtube.com/playlist?list=PL-5gYa7CLd4iBdPHRaSEwbivCnUq1nxj9) - Technical Sagar
 * [Python for Data Science for Absolute Beginners (Full Course)](https://www.youtube.com/playlist?list=PL1gztxnUtwNfnR0jYniFM5E6HwcQMnFmx) - Data is Good
@@ -667,6 +696,7 @@
 * [Python Tutorial For Beginners in (Hindi)](https://www.youtube.com/playlist?list=PLf0LpPWikpPe5gc6fT9wDj3Y6e97z6ZD_) - DataFlair Hindi
 * [Python Tutorial For Beginners in Hindi](https://www.youtube.com/watch?v=FStwWUkW5RQ&list=PLnSDvcENZlwAcFgFLD5bzt5Zh428yzQXT) - Micro Solution
 * [Python Tutorial in Hindi](https://www.youtube.com/playlist?list=PLQbQOmlGYH3tC535nKa7xB7dd7pZtYMZX) - edureka! Hindi
+* [Web Scraping Full Free Course by WsCube Tech](https://youtube.com/playlist?list=PLjVLYmrlmjGfSYkgH-_jgC8KMxyRzq7US&si=quHKEA6-lapsAXQu) - WsCube Tech
 
 
 #### Django
@@ -703,6 +733,7 @@
 
 ### Ruby
 
+* [Complete Ruby Programming Course \|\| Hindi](https://www.youtube.com/playlist?list=PLgPJX9sVy92y_ENwi_4hMCpDtQFnazFPp) - CS Geeks
 * [Learn Ruby in 45 Minutes \| Hindi](https://www.youtube.com/watch?v=3V9a_WYEQPA) - CS Geeks
 
 
@@ -723,6 +754,7 @@
 ### Security
 
 * [Complete Ethical Hacking Tutorial for Beginners to Pro 2022](https://www.youtube.com/playlist?list=PLjVLYmrlmjGea8U9nphmCHGK_v6p_wq-R) - WsCube Tech
+* [Cryptography and network security](https://www.youtube.com/playlist?list=PL9FuOtXibFjV77w2eyil4Xzp8eooqsPp8) - Abhishek Sharma
 * [Cryptography and Network Security Lecture in Hindi / Urdu for Beginners](https://youtube.com/playlist?list=PLE3bzAX_OzbkQXKbRFqQqbnlGxTNeaUqe) - Katoon Studio
 * [cyber security course for beginners - Urdu/Hindi](https://www.youtube.com/playlist?list=PLKJfBg0XdWkevCEJ64RK11LylBNX2-zbk) - hashintelligence
 * [Cyber Security Tutorial In Hindi](https://www.youtube.com/playlist?list=PL-JvKqQx2AteIbm-z4X709scVr9OaHpIY) - University Academy
@@ -740,7 +772,9 @@
 
 ### Solidity
 
+* [Solidity ^0.8 \| Blockchain \| In Hindi](https://www.youtube.com/playlist?list=PL-Jc9J83PIiG6_thChXWzolj9BEG-Y0gh) - Pepcoding
 * [Solidity Full Course](https://www.youtube.com/playlist?list=PLgPmWS2dQHW9u6IXZq5t5GMQTpW7JL33i) - Code Eater
+* [Solidity full course for beginners in Hindi](https://www.youtube.com/playlist?list=PLR0uCBk15bq9a__TgfcZ7oA73MTEZ3NOK) - web3Mantra
 
 
 ### Swift
diff --git a/courses/free-courses-id.md b/courses/free-courses-id.md
index 5450f64a6..cc1411383 100644
--- a/courses/free-courses-id.md
+++ b/courses/free-courses-id.md
@@ -100,6 +100,7 @@
 * [Dart Indonesia](https://www.youtube.com/playlist?list=PLoNv-2zK-dzEbZSFeGgSnpdp5i_Lwto-8) - CodeWithIhwan
 * [Dart Programming Untuk Persiapan Belajar Flutter](https://buildwithangga.com/kelas/dart-programming-untuk-persiapan-belajar-flutter) - Rifqi Eka (BuildWithAngga) *(phone number and email address required)*
 * [Pemrograman Berorientasi Objek - Dart](https://www.youtube.com/playlist?list=PLZS-MHyEIRo7cgStrKAMhgnOT66z2qKz1) - Erico Darmawan Handoyo
+* [Tutorial Dart](https://www.kevintekno.com/p/tutorial-dart.html) - Kevin Tekno
 * [TUTORIAL DART DASAR (BAHASA INDONESIA)](https://www.youtube.com/watch?v=-mzXdI27tyk) - Eko Kurniawan Khannedy, Programmer Zaman Now
 * [Tutorial Dart OOP - Bahasa Indonesia](https://www.youtube.com/watch?v=k0ycD2aqPzU) - Eko Kurniawan Khannedy, Programmer Zaman Now
 
@@ -150,6 +151,7 @@
 * [Source Code Management untuk Pemula](https://www.dicoding.com/academies/116) - Dicoding, membutuhkan registrasi
 * [Tutorial GIT Bahasa Indonesia Lengkap](https://www.youtube.com/playlist?list=PL1aMeb5UP_PHXTV_Xpt-19x_rVPXrymOM) - IDStack
 * [Tutorial Git Dasar](https://www.youtube.com/watch?v=fQbTeNX1mvM) - Programmer Zaman Now
+* [Upload Code di Github](https://app.sko.dev/kelas/upload-kode-di-github) - Sekolah Koding
 
 
 ### Go
@@ -217,6 +219,7 @@
 * [Belajar Full-stack JavaScript Dengan Next.js Dalam 6 Jam](https://www.youtube.com/watch?v=kproo1ezjH0&t=2s) - Nauval, Array Id
 * [Belajar JavaScript](https://alwaysngoding.com/belajar-javascript/teori) - Muhammad Saleh Solahudin, Always Ngoding (account *required*)
 * [Belajar JavaScript Async](https://www.youtube.com/playlist?list=PL-CtdCApEFH-I4CD6km3BcXqrhWAkY4et) - Eko Kurniawan Khannedy, Programmer Zaman Now
+* [Belajar JavaScript Untuk Website](https://app.sko.dev/kelas/belajar-javascript-untuk-website) - sko.dev
 * [Dasar Pemrograman dengan JavaScriipt](https://www.youtube.com/playlist?list=PLFIM0718LjIWXagluzROrA-iBY9eeUt4w) - Web Programming UNPAS
 * [ExpressJS Tutorial Indonesia](https://www.youtube.com/playlist?list=PL9At9z2rvOC-sgzJx7rM_wMDONnEM4E0A) - Ekky Ridyanto (Balademy)
 * [JavaScript dan DOM (Document Object Model)](https://www.youtube.com/playlist?list=PLFIM0718LjIWB3YRoQbQh82ZewAGtE2-3) - Web Programming UNPAS
diff --git a/courses/free-courses-it.md b/courses/free-courses-it.md
index 17a548342..35ba54149 100644
--- a/courses/free-courses-it.md
+++ b/courses/free-courses-it.md
@@ -157,6 +157,7 @@
 ### Machine Learning
 
 * [Machine Learning in italiano col Pollo Watzlawick](https://www.youtube.com/playlist?list=PLa-sizbCyh93c0nSPAb8k5ZZeOq4SBIl9) - Piero Savastano
+* [Machine Learning Reti Neurali](https://www.youtube.com/playlist?list=PL-tCoHPn6YlbCQHeyRxc_CQ0f1VZsUD6D) - Davide Manzoni (Brainlink)
 
 
 ### Misto
@@ -235,11 +236,13 @@
 ### Web
 
 * [Computer grafica 2017/2018](https://www.youtube.com/playlist?list=PLUFFnpJdi99kXjntQ0LNPnLbRLjKzmQaC) - A. Bottino, Politecnico di Torino
+* [Corso Bootstrap Italiano](https://www.youtube.com/playlist?list=PLP5MAKLy8lP_boQ2FBTSvA1fU73x2BiEv) - Edoardo Midali
 * [Corso CSS 3 Completo 2023](https://www.youtube.com/playlist?list=PLP5MAKLy8lP-a0MG-MFHKCISmj2Wg4vT6) - Edoardo Midali
 * [Corso Flutter 2020](https://www.youtube.com/playlist?list=PLFD-5ZFcEgYX5q5pobSkQGfC6rMYy_puq) - Angelo Cassano
 * [Corso HTML 5 Completo 2023](https://www.youtube.com/playlist?list=PLP5MAKLy8lP8U-yYn6J4hGfcee4Tirieg) - Edoardo Midali
 * [Corso HTML 5 Italiano 2023](https://www.youtube.com/playlist?list=PL6PilnEO6HWbTXL8nLSkp-875H-x-vhEo) - Manuel Ricci
 * [Corso SEO Italiano 2023](https://www.youtube.com/playlist?list=PLP5MAKLy8lP9OpFQyF2LnTWgtcoDLgYm7) - Edoardo Midali
+* [Corso Typescript 2023](https://www.youtube.com/playlist?list=PLP5MAKLy8lP--n8iUsDsFMuTiKW5ooZE6) - Edoardo Midali
 * [Mini Corso React / TypeScript / TSX 2023](https://www.youtube.com/playlist?list=PLUioGv_6G9YJw8uZb040obhcCi8tQX9IQ) - Fabio Biondi
 * [Progettazione di applicazioni Web](https://www.youtube.com/playlist?list=PLE0AA1735F10543A6) - Fulvio Corno, S. Di Carlo, Politecnico di Torino
 
diff --git a/courses/free-courses-pl.md b/courses/free-courses-pl.md
index 922c72ad3..52050d706 100644
--- a/courses/free-courses-pl.md
+++ b/courses/free-courses-pl.md
@@ -7,6 +7,7 @@
 * [C](#c)
 * [C#](#csharp)
 * [C++](#cpp)
+* [Embedded](#embedded)
 * [HTML and CSS](#html-and-css)
 * [Java](#java)
 * [JavaScript](#javascript)
@@ -54,6 +55,12 @@
 * [PROGRAMOWANIE W C++. KURS OD PODSTAW, DLA KAŻDEGO (VIDEO)](https://www.youtube.com/playlist?list=PLOYHgt8dIdoxx0Y5wzs7CFpmBzb40PaDo) - Mirosław Zelent, Damian Stelmach
 
 
+### Embedded
+
+* [Kurs podstaw Arduino](https://www.forbot.pl/blog/kurs-arduino-podstawy-programowania-spis-tresci-kursu-id5290)
+* [Kurs STM32L4](https://www.forbot.pl/blog/kurs-stm32-l4-wstep-spis-tresci-dla-kogo-jest-ten-kurs-id48575)
+
+
 ### HTML and CSS
 
 * [Kurs CSS](http://www.kurshtmlcss.pl/kurs-css) (Netido Interactive Agency)
diff --git a/courses/free-courses-ur.md b/courses/free-courses-ur.md
index 3675fcc7d..dedd8b6c7 100644
--- a/courses/free-courses-ur.md
+++ b/courses/free-courses-ur.md
@@ -59,5 +59,5 @@
 
 ### Python
 
+* [Python](https://www.youtube.com/playlist?list=PL-vQNozaqIxuPzFUVEIrYDvd6ieUshJTw) - Kawish - Urdu
 * [Python_ka_chilla (python in 40 days in urdu/Hindi)](https://www.youtube.com/playlist?list=PL9XvIvvVL50HVsu-Ao8NBr0UJSO8O6lBI) - Codeanics
-  
diff --git a/courses/free-courses-vi.md b/courses/free-courses-vi.md
index c5de040aa..d982e001e 100644
--- a/courses/free-courses-vi.md
+++ b/courses/free-courses-vi.md
@@ -8,8 +8,8 @@
 * [Blazor](#blazor)
 * [Bootstrap](#bootstrap)
 * [C](#c)
-* [C#](#csharp)
-* [Cấu trúc dữ liệu và Giải thuật](#cautrucdulieuvagiaithuat)
+* [C#](#a-idcsharpac)
+* [Cấu trúc dữ liệu và Giải thuật](#cấu-trúc-dữ-liệu-và-giải-thuật)
 * [Flutter](#flutter)
 * [Git](#git)
 * [Go](#go)
@@ -141,6 +141,7 @@
 * [HTML](https://www.codehub.com.vn/HTML) - Codehub
 * [HTML Cơ Bản](https://www.codehub.com.vn/HTML-Co-Ban) - Codehub
 * [HTML Cơ Bản](https://www.youtube.com/playlist?list=PLl4nkmb3a8w135_M4YRPzYD9_6tERz3ce) - Thạch Phạm
+* [HTML Dành Cho Lập Trình Viên Web](https://zendvn.com/mien-phi-html-danh-cho-lap-trinh-vien-web-68) - Nguyen Van Linh (ZendVN)
 * [Tự Học Thiết Kế Website với HTML và CSS](https://www.codehub.com.vn/Tu-Hoc-Thiet-Ke-Website-voi-HTML-va-CSS) - Codehub
 
 
diff --git a/docs/CODE_OF_CONDUCT-ja.md b/docs/CODE_OF_CONDUCT-ja.md
index fee634875..1054cca4d 100644
--- a/docs/CODE_OF_CONDUCT-ja.md
+++ b/docs/CODE_OF_CONDUCT-ja.md
@@ -39,8 +39,8 @@
 守らなければなりません。
 
 この行動規範は、[貢献者規約][ホームページ]から引用したものです、
-バージョン1.3.0（https://contributor-covenant.org/version/1/3/0/）から引用したものです。
+バージョン1.3.0(https://contributor-covenant.org/version/1/3/0/) から引用したものです。
 
 [ホームページ]: https://contributor-covenant.org
 
-[翻訳](README.md#translations)
\ No newline at end of file
+[翻訳](README.md#translations)
diff --git a/docs/CONTRIBUTING-hi.md b/docs/CONTRIBUTING-hi.md
index 571f1c45c..894683671 100644
--- a/docs/CONTRIBUTING-hi.md
+++ b/docs/CONTRIBUTING-hi.md
@@ -1,3 +1,4 @@
+
 *[इसे अन्य भाषाओं में पढ़ें](README.md#translations)*
 
 ## योगदानकर्ता लाइसेंस अनुबंध
@@ -257,3 +258,80 @@
 
 - आप जाँच करने के लिए एक से अधिक फ़ाइल निर्दिष्ट कर सकते हैं, एक का उपयोग करके प्रत्येक प्रविष्टि को अलग करने के लिए एकल स्थान।
 - यदि आप एक से अधिक फ़ाइल निर्दिष्ट करते हैं, तो बिल्ड के परिणाम अंतिम जाँच की गई फ़ाइल के परिणाम पर आधारित होते हैं। आपको पता होना चाहिए कि इसके कारण आपको पासिंग ग्रीन बिल्ड मिल सकते हैं, इसलिए "सभी जाँच दिखाएँ" -> "विवरण" पर क्लिक करके पुल अनुरोध के अंत में बिल्ड लॉग का निरीक्षण करना सुनिश्चित करें।
+=======
+
+
+यदि आप कोई गलत लिंक देखते हैं, तो यह जानने के लिए लिंटर त्रुटि संदेश की जाँच करें कि किन पंक्तियों को स्वैप किया जाना चाहिए।
+
+### नोट्स
+
+हालांकि बुनियादी बातें अपेक्षाकृत सरल हैं, लेकिन हमारे द्वारा सूचीबद्ध संसाधनों में बहुत विविधता है। यहां बताया गया है कि हम इस विविधता से कैसे निपटते हैं।
+
+#### मेटाडाटा
+
+हमारी सूचियाँ न्यूनतम मेटाडाटा प्रदान करती हैं: शीर्षक, यूआरएल, निर्माता, प्लेटफ़ॉर्म और एक्सेस नोट्स।
+
+##### शीर्षक
+
+- कोई आविष्कृत शीर्षक नहीं। हम संसाधनों से ही शीर्षक लेते हैं; योगदानकर्ताओं को निर्देश दिया जाता है कि जब तक इसे टाला जा सकता है, तब तक शीर्षक न बनाएं या उन्हें संपादकीय रूप से उपयोग न करें। एक अपवाद पुराने कार्यों के लिए है; यदि वे मुख्य रूप से ऐतिहासिक रुचि के हैं, तो शीर्षक के बाद कोष्ठक में वर्ष जोड़ने से उपयोगकर्ताओं को यह पता चल जाता है कि वे रुचि के हैं या नहीं।
+
+- कोई ALLCAPS शीर्षक नहीं। आमतौर पर शीर्षक मामला उपयुक्त होता है, लेकिन जब संदेह हो तो स्रोत से पूंजीकरण का उपयोग करें।
+
+- कोई इमोजी नहीं।
+
+##### यूआरएल
+
+- हम संक्षिप्त यूआरएल की अनुमति नहीं देते।
+
+- यूआरएल से ट्रैकिंग कोड हटा दिए जाने चाहिए।
+
+- अंतर्राष्ट्रीय यूआरएल को एस्केप किया जाना चाहिए। ब्राउज़र बार आमतौर पर इन्हें यूनिकोड में प्रस्तुत करते हैं, लेकिन कृपया कॉपी और पेस्ट का उपयोग करें।
+
+- गैर-सुरक्षित (`http`) यूआरएल की तुलना में हमेशा सुरक्षित (`https`) यूआरएल को प्राथमिकता दी जाती है जहां HTTPS लागू किया गया है।
+
+- हमें ऐसे यूआरएल पसंद नहीं हैं जो सूचीबद्ध संसाधन की मेजबानी करने वाले वेबपृष्ठों की ओर इंगित नहीं करते बल्कि कहीं और इंगित करते हैं।
+
+##### निर्माता
+
+- जहां उपयुक्त हो वहां निःशुल्क संसाधनों के निर्माताओं को श्रेय देना हम चाहते हैं, इसमें अनुवादक भी शामिल हैं!
+
+- अनुवादित कार्यों के लिए मूल लेखक को श्रेय दिया जाना चाहिए। हम अनुशंसा करते हैं कि लेखकों के अलावा अन्य निर्माताओं को श्रेय देने के लिए [MARC रिलेटर](https://loc.gov/marc/relators/relaterm.html) का उपयोग करें, जैसा कि इस उदाहरण में है:
+
+    ```markdown
+
+    * [एक अनुवादित पुस्तक](http://example.com/book.html) - जॉन डो, `trl.:` माइक द ट्रांसलेटर
+
+    ```
+
+    यहाँ, एनोटेशन `trl.:` "अनुवादक" के लिए MARC रिलेटर कोड का उपयोग करता है।
+
+- लेखक सूची में प्रत्येक आइटम को सीमांकित करने के लिए अल्पविराम `,` का उपयोग करें।
+
+- आप लेखक सूचियों को "`et al.`" के साथ छोटा कर सकते हैं।
+
+- हम निर्माताओं के लिए लिंक की अनुमति नहीं देते।
+
+- संकलन या मिश्रित कार्यों के लिए, "निर्माता" को विवरण की आवश्यकता हो सकती है। उदाहरण के लिए, "GoalKicker" या "RIP ट्यूटोरियल" पुस्तकों को श्रेय दिया जाता है "`StackOverflow प्रलेखन से संकलित किया गया`"।
+
+- हम निर्माता नामों में "प्रोफ़ेसर" या "डॉ." जैसे उपाधियों को शामिल नहीं करते।
+
+##### समय-सीमित पाठ्यक्रम और परीक्षण
+
+- हम ऐसी चीज़ों को सूचीबद्ध नहीं करते जिन्हें हमें छह महीने में हटाना पड़ेगा।
+
+- यदि किसी पाठ्यक्रम में सीमित नामांकन अवधि या अवधि है, तो हम इसे सूचीबद्ध नहीं करेंगे।
+
+- हम उन संसाधनों को सूचीबद्ध नहीं कर सकते जो सीमित अवधि के लिए निःशुल्क हैं।
+
+##### प्लेटफ़ॉर्म और एक्सेस नोट्स
+
+- पाठ्यक्रम। विशेष रूप से हमारी पाठ्यक्रम सूचियों के लिए, प्लेटफ़ॉर्म संसाधन विवरण का एक महत्वपूर्ण हिस्सा है। ऐसा इसलिए है क्योंकि पाठ्यक्रम प्लेटफ़ॉर्म के पास अलग-अलग एक्सेस मॉडल और सुविधाएं होती हैं। जबकि हम आम तौर पर ऐसे पुस्तक को सूचीबद्ध नहीं करेंगे जिसके लिए पंजीकरण की आवश्यकता हो, कई पाठ्यक्रम प्लेटफ़ॉर्म के पास ऐसी सुविधाएं होती हैं जो किसी प्रकार के खाते के बिना काम नहीं करतीं। उदाहरण पाठ्यक्रम प्लेटफ़ॉर्म में Coursera, EdX, Udacity और Udemy शामिल हैं। जब कोई पाठ्यक्रम किसी प्लेटफ़ॉर्म पर निर्भर करता है, तो प्लेटफ़ॉर्म का नाम सूचीबद्ध किया जाना चाहिए।
+
+- YouTube। हमारे पास कई पाठ्यक्रम हैं जिनमें YouTube प्लेलिस्ट शामिल हैं। हम YouTube को प्लेटफ़ॉर्म के रूप में सूचीबद्ध नहीं करते, हम YouTube निर्माता को सूचीबद्ध करने का प्रयास करते हैं, जो अक्सर एक उप-प्लेटफ़ॉर्म होता है।
+
+- YouTube वीडियो। हम आमतौर पर व्यक्तिगत YouTube वीडियो को लिंक नहीं करते जब तक कि वे एक घंटे से अधिक लंबे न हों और पाठ्यक्रम या ट्यूटोरियल की तरह संरचित न हों। यदि ऐसा है, तो सुनिश्चित करें कि इसे पीआर विवरण में नोट करें।
+
+- संक्षिप्त (अर्थात youtu.be/xxxx) लिंक नहीं!
+
+- Leanpub। Leanpub विभिन्न एक्सेस मॉडल के साथ पुस्तकों की मेजबानी करता है। कभी-कभी किसी पुस्तक को बिना पंजीकरण के पढ़ा जा सकता है; कभी-कभी किसी पुस्तक के लिए मुफ़्त एक्सेस के लिए Leanpub खाता आवश्यक होता है। Leanpub एक्सेस मॉडल की गुणवत्ता और मिश्रण और तरलता को देखते हुए, हम बाद वाले को एक्सेस नोट के साथ सूचीबद्ध करने की अनुमति देते हैं `*(Leanpub खाता या मान्य ईमेल अनुरोधित)*`।
+
diff --git a/docs/CONTRIBUTING-ja.md b/docs/CONTRIBUTING-ja.md
index d82e3aeb9..39f04d2ac 100644
--- a/docs/CONTRIBUTING-ja.md
+++ b/docs/CONTRIBUTING-ja.md
@@ -75,7 +75,7 @@
 
 例
 
-テキスト
+```text
 [...]
 * 素晴らしい本(http://example.com/example.html)
                                 (空行)
@@ -86,30 +86,30 @@
 * その他の本(http://example.com/other.html)
 ```
 
-- と`の間にスペースを入れないでください：
+- `]` と `(`の間にスペースを入れないでください：
 
-    テキスト
+    ```text
     BAD ： * [Another Awesome Book] (http://example.com/book.html)
     GOOD： * [Another Awesome Book](http://example.com/book.html)
     ```
 
 - 著者を含める場合は、` - `（ダッシュを半角スペースで囲む）を使用する：
 
-    テキスト
+    ```text
     BAD ： * [Another Awesome Book](http://example.com/book.html)- John Doe
     GOOD： * [Another Awesome Book](http://example.com/book.html) - John Doe
     ```
 
 - リンクとその形式の間に半角スペースを入れる：
 
-    テキスト
+    ```text
     BAD ： * [とても素晴らしい本](https://example.org/book.pdf)(PDF)
     GOOD： * [とても素晴らしい本](https://example.org/book.pdf) (PDF)
     ```
 
 - 著者はフォーマットの前に来る：
 
-    テキスト
+    ```text
     BAD ： * [A Very Awesome Book](https://example.org/book.pdf)- (PDF) ジェーン・ロー
     GOOD： * [A Very Awesome Book](https://example.org/book.pdf) - ジェーン・ロー (PDF)
     ```
@@ -144,7 +144,7 @@
 ### アルファベット順
 
 - 同じ文字で始まるタイトルが複数ある場合は、2番目から順に並べる。例：`aa`は`ab`の前。
-- one two`は`onetwo`の前。
+- `one two`は`onetwo`の前。
 
 リンクがずれている場合は、リンターのエラーメッセージを確認して、どの行を入れ替えるべきか確認してください。
 
@@ -180,8 +180,8 @@
 - 私たちは、翻訳者を含め、適切な場合、フリーリソースの作成者をクレジットしたいと思います！
 - 翻訳された作品については、原著者がクレジットされるべきです。この例のように、著者以外のクリエイターをクレジットするには、[MARC relators](https://loc.gov/marc/relators/relaterm.html)を使うことをお勧めします：
 
-    マークダウン
-    * 翻訳本](http://example.com/book.html) - John Doe, `trl.:` Mike The Translator
+    ```markdown
+    * [翻訳本](http://example.com/book.html) - John Doe, `trl.:` Mike The Translator
     ```
 
     この例では、`trl.:`という注釈にMARCのリレータコードを使用しています。
@@ -263,9 +263,9 @@
 - URLバリデーションは[awesome_bot](https://github.com/dkhamsing/awesome_bot)を使います。
 - URL バリデーションを起動するには、`check_urls=file_to_check` を含むコミットメッセージを含むコミットをプッシュします：
 
-    プロパティ
+    ```properties
     check_urls=free-programming-books.md free-programming-books-ja.md
     ```
 
 - チェックするファイルを複数指定することもできます。
-- 複数のファイルを指定した場合、ビルドの結果は最後にチェックしたファイルの結果に基づいて行われます。このため、Pull Request の最後にある "Show all checks" -> "Details" をクリックしてビルドログを確認してください。
\ No newline at end of file
+- 複数のファイルを指定した場合、ビルドの結果は最後にチェックしたファイルの結果に基づいて行われます。このため、Pull Request の最後にある "Show all checks" -> "Details" をクリックしてビルドログを確認してください。
diff --git a/docs/CONTRIBUTING.md b/docs/CONTRIBUTING.md
index 8b0a40839..439f8a9c5 100644
--- a/docs/CONTRIBUTING.md
+++ b/docs/CONTRIBUTING.md
@@ -140,6 +140,23 @@ Example:
     ```text
     GOOD: * [A Way-backed Interesting Book](https://web.archive.org/web/20211016123456/http://example.com/) - John Doe (HTML) *(:card_file_box: archived)*
     ```
+    
+- <a id="license"></a>Free Licenses (While we include resources that are "All Rights Reserved" but free to read, we encourage the use of free licenses, such as Creative Commons):
+
+    ```text
+    GOOD: * [A Very Awesome Book](https://example.org/book.pdf) - Jane Roe (PDF) (CC BY-SA)
+    ```
+
+    Supported Licences (no versioning):
+
+    - `CC BY` 'Creative Commons attribution'
+    - `CC BY-NC` 'Creative Commons non-commercial'
+    - `CC BY-SA` 'Creative Commons share-alike'
+    - `CC BY-NC-SA` 'Creative Commons non-commercial, share-alike'
+    - `CC BY-ND` 'Creative Commons no-derivatives'
+    - `CC BY-NC-ND` 'Creative Commons non-commercial, no-derivatives'
+    - `GFDL` 'Gnu Free Documentation License'
+
 
 ### Alphabetical order
 
diff --git a/docs/HOWTO-ja.md b/docs/HOWTO-ja.md
index e74153c11..d4280c53b 100644
--- a/docs/HOWTO-ja.md
+++ b/docs/HOWTO-ja.md
@@ -6,11 +6,11 @@
 
 </div>
 
-**Free-Programming-Books`へようこそ!**
+** Free-Programming-Books へようこそ! **
 
 私たちは新しい貢献者を歓迎します。GitHub で初めて Pull Request (PR) を作成する人も歓迎します。もしあなたがその一人であるなら、役に立つかもしれないリソースをいくつか紹介しましょう：
 
-* プルリクエストについて](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/about-pull-requests)
+* [プルリクエストについて](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/about-pull-requests)
 * [プルリクエストの作成](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request)
 * [GitHub Hello World](https://docs.github.com/en/get-started/quickstart/hello-world)
 * [YouTube - GitHub Tutorial For Beginners](https://www.youtube.com/watch?v=0fKg7e37bQE)
@@ -31,4 +31,4 @@
 
 経験豊富なオープンソース貢献者であっても、つまずくことがあるかもしれません。PRを投稿すると、***GitHub Actions*が**リンター**を実行し、しばしば間隔やアルファベット表記に関する小さな問題を見つけます**。緑色のボタンが表示されれば、レビューの準備は完了です。もし表示されない場合は、失敗したチェックの下にある「詳細」をクリックして、リンターが何を気に入らなかったのかを調べ、PR をオープンしたブランチに新しいコミットを追加して問題を修正しましょう。
 
-最後に、もしあなたが追加したいリソースが `Free-Programming-Books` にふさわしいかどうか確信が持てない場合は、[CONTRIBUTING](CONTRIBUTING-ja.md) *([translations](README.md#translations)もあります)* にあるガイドラインに目を通してください。
\ No newline at end of file
+最後に、もしあなたが追加したいリソースが `Free-Programming-Books` にふさわしいかどうか確信が持てない場合は、[CONTRIBUTING](CONTRIBUTING-ja.md) *([translations](README.md#translations)もあります)* にあるガイドラインに目を通してください。
diff --git a/docs/README.md b/docs/README.md
index 7764a86f2..50c03f876 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -54,6 +54,7 @@ Volunteers have translated many of our Contributing, How-to, and Code of Conduct
 - Hindi / हिन्दी
   - [आचार संहिता](CODE_OF_CONDUCT-hi.md)
   - [How-to](HOWTO-hi.md)
+  - [योगदान](CONTRIBUTING-hi.md)
 - Hungarian / magyar / magyar nyelv
 - Indonesian / Bahasa Indonesia
   - [Berkontribusi](CONTRIBUTING-id.md)
diff --git a/more/free-programming-cheatsheets.md b/more/free-programming-cheatsheets.md
index 5f825e9be..68afcc241 100644
--- a/more/free-programming-cheatsheets.md
+++ b/more/free-programming-cheatsheets.md
@@ -64,7 +64,8 @@
 
 ### Angular
 
-* [Angular Cheat Sheet](https://angular.io/guide/cheatsheet) 
+* [Angular Cheat Sheet](https://angular.io/guide/cheatsheet)
+* [Angular Cheat Sheet – A Basic Guide to Angular](https://www.geeksforgeeks.org/angular-cheat-sheet-a-basic-guide-to-angular/) - GeeksforGeeks
 
 
 ### Ansible
@@ -85,11 +86,13 @@
 
 ### Artificial Intelligence
 
+* [AI is confusing — here’s your cheat sheet](https://www.theverge.com/24201441/ai-terminology-explained-humans) Jay Peters (HTML)
 * [What is Artificial Intelligence?](https://intelligencereborn.com/ArtificialIntelligence.html) IntelligenceReborn (HTML)
 
 
 ### C
 
+* [C Cheat Sheet](https://www.geeksforgeeks.org/c-cheatsheet/) - GeeksforGeeks
 * [C Language Cheat Sheet](https://www.codewithharry.com/blogpost/c-cheatsheet/) - CodeWithHarry(HTML)
 * [C Reference Card (ANSI)](https://users.ece.utexas.edu/~adnan/c-refcard.pdf) (PDF)
 * [Systems Programming Cheat Sheet](https://github.com/jstrieb/systems-programming-cheat-sheet) (HTML)
@@ -104,6 +107,7 @@
 
 ### <a id="cpp"></a>C++
 
+* [C++ Cheatsheet](https://www.geeksforgeeks.org/cpp-cheatsheet) - GeeksforGeeks 
 * [C++ Cheatsheet](https://www.codewithharry.com/blogpost/cpp-cheatsheet) - CodeWithHarry (HTML)
 * [C++ Quick Reference](http://www.hoomanb.com/cs/quickref/CppQuickRef.pdf) - Hooman Baradaran (PDF)
 * [Cheatsheets & Infographics](https://hackingcpp.com/cpp/cheat_sheets.html) - Hacking C++ (HTML & downloadable as PNG)
@@ -394,6 +398,7 @@
 * [Python Cheat Sheet](https://websitesetup.org/python-cheat-sheet/) - WebsiteSetup (HTML, PDF, PNG)
 * [Python Cheat Sheet](https://www.pythoncheatsheet.org) - Wilfredinni (HTML)
 * [Python Cheat Sheet](https://overapi.com/python) - OverAPI
+* [Python Cheat sheet (2024)](https://www.geeksforgeeks.org/python-cheat-sheet) - GeeksforGeeks
 * [Python Crash Course Cheatsheet](https://ehmatthes.github.io/pcc/cheatsheets/README.html) - Eric Matthes (HTML)
 * [Python Crash Course Cheatsheet (2nd Edition)](https://ehmatthes.github.io/pcc_2e/cheat_sheets/cheat_sheets/) - Eric Matthes (PDF)
 * [Python Data Wrangling with pandas](https://pandas.pydata.org/Pandas_Cheat_Sheet.pdf) - Pandas (PDF)
diff --git a/more/free-programming-interactive-tutorials-en.md b/more/free-programming-interactive-tutorials-en.md
index 3b57302e5..bbc3d335c 100644
--- a/more/free-programming-interactive-tutorials-en.md
+++ b/more/free-programming-interactive-tutorials-en.md
@@ -11,6 +11,7 @@
 * [CoffeeScript](#coffeescript)
 * [Dart](#dart)
 * [Data Science](#data-science)
+* [DBMS](#dbms)
 * [Erlang](#erlang)
 * [Git](#git)
 * [GLSL](#glsl)
@@ -71,6 +72,7 @@
 
 ### C
 
+* [C Tutorial](https://www.w3schools.com/c/) - W3Schools
 * [C Tutorial](https://www.scaler.com/topics/c/) - Scaler Topics
 * [Learn C](http://www.learn-c.org) - Learn-C
 
@@ -132,6 +134,11 @@
 * [Top 10 Data Science Projects for Beginners - KDnuggets](https://www.kdnuggets.com/2021/06/top-10-data-science-projects-beginners.html)
 
 
+### DBMS
+
+* [DBMS Course - Master the Fundamentals and Advanced Concepts](https://www.scaler.com/topics/course/dbms/) - Srikanth Varma (Scaler Topics)
+
+
 ### Erlang
 
 * [Try Erlang](http://www.tryerlang.org)
@@ -298,6 +305,7 @@
 * [Learning operating system development using Linux kernel and Raspberry Pi](https://github.com/s-matyukevich/raspberry-pi-os) - Sergey Matyukevich *(:construction: in process)*
 * [Linux Journey - Fun and Easy](https://linuxjourney.com) - Cindy Quach
 * [Operating System Tutorial](https://www.scaler.com/topics/operating-system/) - Scaler Topics
+* [Practice Linux Commands (Hands-On Labs)](https://labex.io/tutorials/practice-linux-commands-free-tutorials-398420) - LabEx
 * [Project eXpOS: eXperimental Operating System](https://exposnitc.github.io) - Murali Krishnan K., Department of Computer Science and Engineering of the Calicut National Institute of Technology (HTML)
 
 
@@ -420,6 +428,7 @@
 * [Rust Quiz](https://dtolnay.github.io/rust-quiz)
 * [Rustlings](https://github.com/rust-lang/rustlings)
 * [TCP Servers in Rust](https://app.codecrafters.io/concepts/rust-tcp-server) - CodeCrafters
+* [Tour of Rust](https://tourofrust.com)
 
 
 ### Scala
diff --git a/more/free-programming-playgrounds.md b/more/free-programming-playgrounds.md
index 007be8b92..156ae61b3 100644
--- a/more/free-programming-playgrounds.md
+++ b/more/free-programming-playgrounds.md
@@ -27,6 +27,7 @@
     * [AngularJS](#angularjs)
 * [Kotlin](#kotlin)
 * [Kubernetes](#kubernetes)
+* [Linux](#linux)
 * [Multiple Languages](#multiple-languages)
 * [.Net](#dotnet)
 * [Nim](#nim)
@@ -98,6 +99,8 @@
 
 ### <a id="cpp"></a>C++
 
+* [C++ Shell](https://cpp.sh)
+* [Codapi](https://codapi.org/cpp)
 * [Coding Blocks](https://ide.codingblocks.com)
 * [Coding Minutes](https://ide.codingminutes.com)
 * [Compiler Explorer](https://godbolt.org)
@@ -138,6 +141,7 @@
 
 ### Docker
 
+* [Online Docker Playground](https://labex.io/tutorials/docker-online-docker-playground-372912)
 * [Play with Docker](https://labs.play-with-docker.com)
 
 
@@ -209,6 +213,7 @@
 * [Java Compiler](https://www.codinguru.online/compiler/java)
 * [JDoodle - Online Java Compiler Advanced IDE](https://www.jdoodle.com/online-java-compiler-ide/)
 * [JDoodle - Online Java Compiler IDE](https://www.jdoodle.com/online-java-compiler/)
+* [Online Java Playground](https://labex.io/tutorials/java-online-java-playground-372914)
 * [OnlineGDB](https://www.onlinegdb.com/online_java_compiler)
 * [Programiz - Online Java Compiler](https://www.programiz.com/java-programming/online-compiler/)
 * [repl.it](https://repl.it) (_including a separate Java/Swing_)
@@ -253,6 +258,11 @@
 * [Play with Kubernetes](https://labs.play-with-k8s.com)
 
 
+### Linux
+
+* [Online Linux Terminal and Playground](https://labex.io/tutorials/linux-online-linux-playground-372915)
+
+
 ### Markdown
 
 * [Markdown Editor](https://www.codinguru.online/compiler/markdown)
diff --git a/more/problem-sets-competitive-programming.md b/more/problem-sets-competitive-programming.md
index a76c757f7..282c30ca6 100644
--- a/more/problem-sets-competitive-programming.md
+++ b/more/problem-sets-competitive-programming.md
@@ -47,6 +47,7 @@
 * [Sigmageek](https://sigmageek.com)
 * [Sphere Online Judge](http://www.spoj.com/contests)
 * [Techgig](https://www.techgig.com)
+* [Top Array Interview Questions – Structured Path with Video Solutions \| Arrays Series](https://takeuforward.org/array/top-array-interview-questions-structured-path-with-video-solutions/)
 * [Top Coding Interview Problems](https://takeuforward.org/interviews/strivers-sde-sheet-top-coding-interview-problems/) - Striver
 * [Topcoder](https://www.topcoder.com)
 * [Toph](https://toph.co)
@@ -96,6 +97,7 @@
 * [C2 Ladders](https://c2-ladders-juol.onrender.com)
 * [Striver's A2Z DSA Course/sheet](https://takeuforward.org/strivers-a2z-dsa-course/strivers-a2z-dsa-course-sheet-2)
 * [Striver’s CP Sheet](https://takeuforward.org/interview-experience/strivers-cp-sheet/)
+* [System Design Roadmap with Videos for SDEs](https://takeuforward.org/system-design/complete-system-design-roadmap-with-videos-for-sdes/) - take U forward(takeuforward)
 
 
 ### Problem Sets
@@ -134,6 +136,7 @@
 * [InterviewBit](https://www.interviewbit.com)
 * [Kattis](https://open.kattis.com)
 * [Mathproblem of the Month - Bilkent University](http://www.fen.bilkent.edu.tr/~cvmath/prob-month.html)
+* [NeetCode 150](https://neetcode.io/practice)
 * [PEG Judge](http://wcipeg.com)
 * [Pep Coding](https://www.pepcoding.com/resources)
 * [PKU Online Judge](http://poj.org)