* [99 tips para Web Development](https://fmontes.gumroad.com/l/99tips) - Freddy Montes (PDF) (se solicita email)
* [99 tips para Web Development](https://fmontes.gumroad.com/l/99tips) - Freddy Montes (PDF) (se solicita email)
* [CSS avanzado](http://librosweb.es/libro/css_avanzado) Javier Eguíluz (HTML) [(PDF)](https://openlibra.com/es/book/download/css-avanzado)
* [CSS avanzado](http://librosweb.es/libro/css_avanzado) - Javier Eguíluz (HTML) [(PDF)](https://openlibra.com/es/book/download/css-avanzado)
* [CSS3 y JavaScript avanzado](https://openlibra.com/es/book/download/css3-y-javascript-avanzado) (PDF)
* [CSS3 y JavaScript avanzado](https://openlibra.com/es/book/download/css3-y-javascript-avanzado) (PDF)
* [Diseño de Interfaces Web](http://interfacesweb.github.io/unidades/) (HTML)
* [Diseño de Interfaces Web](http://interfacesweb.github.io/unidades/) (HTML)
* [El gran libro del diseño web](https://freeditorial.com/es/books/el-gran-libro-del-diseno-web) - Rither Cobeña C [(PDF, EPUB)]
* [El gran libro del diseño web](https://freeditorial.com/es/books/el-gran-libro-del-diseno-web) - Rither Cobeña C [(PDF, EPUB)]
@ -199,7 +199,7 @@
### Java
### Java
* [Aprendiendo Java y POO (2008)](https://openlibra.com/es/book/download/aprendiendo-java-y-poo) (PDF)
* [Aprendiendo Java y POO (2008)](https://openlibra.com/es/book/download/aprendiendo-java-y-poo) (PDF)
* [Desarrollando con Java 8: Poker](https://ia601504.us.archive.org/21/items/DesarrollandoConJava8Poker/DesarrollandoConJava8Poker.pdf) -David Pérez Cabrera (PDF)
* [Desarrollando con Java 8: Poker](https://ia601504.us.archive.org/21/items/DesarrollandoConJava8Poker/DesarrollandoConJava8Poker.pdf) -David Pérez Cabrera (PDF)
* [Desarrollo de proyectos informáticos con Java](http://www3.uji.es/~belfern/libroJava.pdf) (PDF)
* [Desarrollo de proyectos informáticos con Java](http://www3.uji.es/~belfern/libroJava.pdf) (PDF)
* [Ejercicios de Programación en Java](https://www.arkaitzgarro.com/java/) - F.M. Pérez Montes (PDF)
* [Ejercicios de Programación en Java](https://www.arkaitzgarro.com/java/) - F.M. Pérez Montes (PDF)
* [Notas de Introducción al Lenguaje de Programación Java (2004)](https://lya.fciencias.unam.mx/jloa/publicaciones/introduccionJava.pdf) - Universidad Nacional Autónoma de México, Jorge L. Ortega Arjona (PDF)
* [Notas de Introducción al Lenguaje de Programación Java (2004)](https://lya.fciencias.unam.mx/jloa/publicaciones/introduccionJava.pdf) - Universidad Nacional Autónoma de México, Jorge L. Ortega Arjona (PDF)
@ -2010,7 +2010,7 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE
### R
### R
* [Advanced R Programming](http://adv-r.had.co.nz) - Hadley Wickham
* [Advanced R Programming](http://adv-r.had.co.nz) - Hadley Wickham
* [An Introduction to R](https://cran.r-project.org/doc/manuals/R-intro.html) -David M. Smith and William N. Venables
* [An Introduction to R](https://cran.r-project.org/doc/manuals/R-intro.html) -David M. Smith and William N. Venables
* [An Introduction to Statistical Learning with Applications in R](https://web.stanford.edu/~hastie/ISLR2/ISLRv2_website.pdf) - Gareth James, Daniela Witten, Trevor Hastie and Robert Tibshirani (PDF)
* [An Introduction to Statistical Learning with Applications in R](https://web.stanford.edu/~hastie/ISLR2/ISLRv2_website.pdf) - Gareth James, Daniela Witten, Trevor Hastie and Robert Tibshirani (PDF)
* [blogdown: Creating Websites with R Markdown](https://bookdown.org/yihui/blogdown/) - Yihui Xie, Amber Thomas, Alison Presmanes Hill
* [blogdown: Creating Websites with R Markdown](https://bookdown.org/yihui/blogdown/) - Yihui Xie, Amber Thomas, Alison Presmanes Hill
* [Cookbook for R](http://www.cookbook-r.com) - Winston Chang
* [Cookbook for R](http://www.cookbook-r.com) - Winston Chang
* [Distributed Systems 3rd edition](https://www.distributed-systems.net/index.php/books/ds3/) Maarten van Steen, Andrew S. Tanenbaum *(email address required)*
* [Distributed Systems 3rd edition](https://www.distributed-systems.net/index.php/books/ds3/) - Maarten van Steen, Andrew S. Tanenbaum *(email address required)*
* [How to optimize storage costs using Amazon S3](https://aws.amazon.com/s3/cloud-storage-cost-optimization-ebook/) - AWS (PDF)
* [How to optimize storage costs using Amazon S3](https://aws.amazon.com/s3/cloud-storage-cost-optimization-ebook/) - AWS (PDF)
* [Learn Azure in a Month of Lunches](https://azure.microsoft.com/mediahandler/files/resourcefiles/learn-azure-in-a-month-of-lunches/Learn_Azure_in_a_Month_of_Lunches.pdf) - Iain Foulds (PDF)
* [Learn Azure in a Month of Lunches](https://azure.microsoft.com/mediahandler/files/resourcefiles/learn-azure-in-a-month-of-lunches/Learn_Azure_in_a_Month_of_Lunches.pdf) - Iain Foulds (PDF)
* [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/)
@ -941,11 +941,11 @@
### Security
### Security
* [Computer Systems Security](https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-858-computer-systems-security-fall-2014) - Prof. Nickolai Zeldovich (MIT OpenCourseWare)
* [Computer Systems Security](https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-858-computer-systems-security-fall-2014) - Prof. Nickolai Zeldovich (MIT OpenCourseWare)
* [Zero to Hero: A Practical Network Penetration Testing Course](https://www.youtube.com/playlist?list=PLLKT__MCUeiwBa7d7F_vN1GUwz_2TmVQj) - The Cyber Mentor
* [Zero to Hero: A Practical Network Penetration Testing Course](https://www.youtube.com/playlist?list=PLLKT__MCUeiwBa7d7F_vN1GUwz_2TmVQj) - The Cyber Mentor
* [Data Science Foundations](https://skillsbuild.org/students/course-catalog/data-science) - IBM SkillBuild *(email address required)*
* [Data Science Foundations](https://skillsbuild.org/students/course-catalog/data-science) - IBM SkillBuild *(email address required)*
* [Essential Linear Algebra for Data Science and Machine Learning](https://www.kdnuggets.com/2021/05/essential-linear-algebra-data-science-machine-learning.html) -KDnuggets
* [Essential Linear Algebra for Data Science and Machine Learning](https://www.kdnuggets.com/2021/05/essential-linear-algebra-data-science-machine-learning.html) -KDnuggets
* [Top 10 Data Science Projects for Beginners - KDnuggets](https://www.kdnuggets.com/2021/06/top-10-data-science-projects-beginners.html)
* [Top 10 Data Science Projects for Beginners - KDnuggets](https://www.kdnuggets.com/2021/06/top-10-data-science-projects-beginners.html)