###Index
* [Meta-Lists ](#meta-lists )
* [Graphics user interfaces ](#graphics-user-interfaces )
* [Graphics Programming ](#graphics-programming )
* [Language Agnostic ](#language-agnostic )
* [Algorithms & Datastructures ](#algorithms--datastructures )
* [Theoretical Computer Science ](#theoretical-computer-science )
* [Operating systems ](#operating-systems )
* [Database ](#database )
* [Networking ](#networking )
* [Compiler Design ](#compiler-design )
* [Programming Paradigms ](#programming-paradigms )
* [Parallel Programming ](#parallel-programming )
* [Software Architecture ](#software-architecture )
* [Open Source Ecosystem ](#open-source-ecosystem )
* [Information Retrieval ](#information-retrieval )
* [Datamining ](#datamining )
* [Machine Learning ](#machine-learning )
* [Mathematics ](#mathematics )
* [Misc ](#misc )
* [Web Performance ](#web-performance )
* [MOOC ](#mooc )
* [Professional Development ](#professional-development )
* [Cryptography ](#cryptography )
* [Ada ](#ada )
* [Agda ](#agda )
* [Android ](#android )
* [APL ](#apl )
* [Autotools ](#autotools )
* [ASP.NET MVC ](#aspnet-mvc )
* [Assembly Language ](#assembly-language )
* [Bash ](#bash )
* [C ](#c )
* [C++ ](#c-1 )
* [Clojure ](#clojure )
* [COBOL ](#cobol )
* [CoffeeScript ](#coffeescript )
* [ColdFusion ](#coldfusion )
* [Coq ](#coq )
* [D ](#d )
* [Dart ](#dart )
* [DTrace ](#dtrace )
* [DB2 ](#db2 )
* [Delphi / Pascal ](#delphi--pascal )
* [Elasticsearch ](#elasticsearch )
* [Emacs ](#emacs )
* [Erlang ](#erlang )
* [Flex ](#flex )
* [F# ](#f-sharp )
* [Forth ](#forth )
* [Git ](#git )
* [Go ](#go )
* [Grails ](#grails )
* [Hadoop ](#hadoop )
* [Haskell ](#haskell )
* [HTML / CSS ](#html--css )
* [Icon ](#icon )
* [IDL ](#idl )
* [iOS ](#ios )
* [J ](#j )
* [Java ](#java )
* [Wicket ](#wicket )
* [JavaScript ](#javascript )
* [Angular.js ](#angularjs )
* [Backbone.js ](#backbonejs )
* [D3.js ](#d3js )
* [jQuery ](#jquery )
* [Knockout.js ](#knockout.js )
* [Node.js ](#nodejs )
* [LaTeX ](#latex )
* [Linux ](#linux )
* [Lisp ](#lisp )
* [Lua ](#lua )
* [Mathematica ](#mathematica )
* [Maven ](#maven )
* [Mercurial ](#mercurial )
* [.NET (C# / VB / Nemerle / Visual Studio) ](#net-c--vb--nemerle--visual-studio )
* [NoSQL ](#nosql )
* [Oberon ](#oberon )
* [Objective-C ](#objective-c )
* [OCaml ](#ocaml )
* [Octave ](#octave )
* [OpenSCAD ](#openscad )
* [Oracle Server ](#oracle-server )
* [Oracle PL/SQL ](#oracle-plsql )
* [Parrot / Perl 6 ](#parrot--perl-6 )
* [Perl ](#perl )
* [PHP ](#php )
* [PowerShell ](#powershell )
* [Processing ](#processing )
* [Prolog ](#prolog )
* [PostgreSQL ](#postgresql )
* [Python ](#python )
* [Django ](#django )
* [Flask ](#flask )
* [R ](#r )
* [Racket ](#racket )
* [Ruby ](#ruby )
* [Ruby on Rails ](#ruby-on-rails )
* [Rust ](#rust )
* [Sage ](#sage )
* [Scala ](#scala )
* [Scheme ](#scheme )
* [Scilab ](#scilab )
* [Scratch ](#scratch )
* [Security ](#security )
* [Sed ](#sed )
* [Silverlight ](#silverlight )
* [Smalltalk ](#smalltalk )
* [Subversion ](#subversion )
* [SQL (implementation agnostic) ](#sql-implementation-agnostic )
* [SQL Server ](#sql-server )
* [Teradata ](#teradata )
* [TeX ](#tex )
* [Theory ](#theory )
* [TypeScript ](#typescript )
* [Unix ](#unix )
* [Vim ](#vim )
* [Websphere ](#websphere )
* [Windows Phone ](#windows-phone )
* [Windows 8 ](#windows-8 )
###Meta-Lists
* [25 Free Computer Science Ebooks ](http://www.coderholic.com/25-free-computer-science-books/ )
* [Cheat Sheets (Free) ](http://refcardz.dzone.com/ )
* [E-Books Directory ](http://www.e-booksdirectory.com/ )
* [Free Smalltalk Books, collected by Stéphane Ducasse ](http://stephane.ducasse.free.fr/FreeBooks.html )
* [Free Tech Books ](http://www.freetechbooks.com/ )
* [Hacker Shelf ](http://hackershelf.com/browse/ )
* [Microsoft Press: Free E-Books ](http://blogs.msdn.com/b/microsoft_press/archive/2011/03/03/ebooks-list-of-our-free-books.aspx )
* [MindView Inc ](http://www.mindviewinc.com/Books/ )
* [O'Reilly's Commons ](http://commons.oreilly.com/wiki/index.php/O%27Reilly_Commons )
* [O'Reilly's Open Books Project ](http://oreilly.com/openbook/ )
* [TechBooksForFree.com ](http://www.techbooksforfree.com/ )
* [Theassayer.org ](http://theassayer.org/ )
* [Wikibooks: Programming ](http://en.wikibooks.org/wiki/Category%3aComputer_programming )
* [JSBooks - directory of free javascript ebooks ](https://github.com/revolunet/JSbooks )
* [Learn X in Y minutes ](http://learnxinyminutes.com/ )
###Graphics Programming
* [DirectX manual ](http://www.xmission.com/~legalize/book/download/index.html ) (draft)
* [Learning Modern 3D Graphics Programming ](http://www.arcsynthesis.org/gltut/ ) (draft)
* [Introduction to Modern OpenGL ](http://open.gl/ )
* [GPU Gems ](http://http.developer.nvidia.com/GPUGems/gpugems_part01.html )
* [GPU Gems 2 ](http://http.developer.nvidia.com/GPUGems2/gpugems2_part01.html ) - [ch 8,14,18,29,30 as pdf ](ftp://download.nvidia.com/developer/GPU_Gems_2/ )
* [GPU Gems 3 ](http://http.developer.nvidia.com/GPUGems3/gpugems3_part01.html )
* [Graphics Programming Black Book ](http://www.gamedev.net/page/resources/_/technical/graphics-programming-and-theory/graphics-programming-black-book-r1698 )
* [OpenGL Insights ](http://openglinsights.com ) (chapters 22, 23, 28, 33, 39)
* [ShaderX series ](http://tog.acm.org/resources/shaderx/ )
* [Tutorials for modern OpenGL ](http://www.opengl-tutorial.org/ )
* [OpenGL Programming Guide (The Red Book) ](http://fly.srk.fer.hr/~unreal/theredbook/ )
###Graphics User Interfaces
* [Programming with gtkmm 3 ](https://developer.gnome.org/gtkmm-tutorial/stable/ )
###Language Agnostic
####Algorithms & Datastructures
* [Algorithms and Data-Structures ](http://www.ethoberon.ethz.ch/WirthPubl/AD.pdf ) (PDF)
* [Algorithms ](http://highered.mcgraw-hill.com/sites/0073523402/ ) (draft)
* [Algorithms Course Materials ](http://compgeom.cs.uiuc.edu/~jeffe/teaching/algorithms/ ) - Jeff Erickson
* [Algorithms, 4th Edition ](http://algs4.cs.princeton.edu/home/ ) - Robert Sedgewick and Kevin Wayne
* [Binary Trees ](http://cslibrary.stanford.edu/110/BinaryTrees.pdf ) (PDF)
* [Clever Algorithms ](http://www.cleveralgorithms.com/nature-inspired/index.html )
* [Computational Geometry: Algorithms and Applications ](http://www.cs.uu.nl/geobook/ ) (chapters 1 and 9, pseudo-code)
* [Data Structures and Algorithms: Annotated Reference with Examples ](http://dotnetslackers.com/projects/Data-Structures-And-Algorithms/ )
* [The Algorithm Design Manual ](http://www8.cs.umu.se/kurser/TDBAfl/VT06/algorithms/BOOK/BOOK/BOOK.HTM )
* [Hacker's Delight ](http://www.hackersdelight.org ) (chapter 2, code)
* [LEDA: A Platform for Combinatorial and Geometric Computing ](http://www.mpi-inf.mpg.de/~mehlhorn/LEDAbook.html )
* [Planning Algorithms ](http://planning.cs.uiuc.edu/ )
* [Linked List Basics ](http://cslibrary.stanford.edu/103/LinkedListBasics.pdf ) (PDF)
* [Linked List Problems ](http://cslibrary.stanford.edu/105/LinkedListProblems.pdf ) (PDF)
* [Open Data Structures ](http://opendatastructures.org/ )
* [Purely Functional Data Structures ](http://www.cs.cmu.edu/~rwh/theses/okasaki.pdf ) (PDF)
* [The Great Tree List Recursion Problem ](http://cslibrary.stanford.edu/109/TreeListRecursion.pdf ) (PDF)
* [Matters Computational ](http://www.jjj.de/fxt/#fxtbook )
* [Algorithmic Graph Theory ](http://code.google.com/p/graphbook/ )
* [Foundations of Computer Science ](http://infolab.stanford.edu/~ullman/focs.html ) - Al Aho and Jeff Ullman
* [A Field Guide To Genetic Programming ](http://dces.essex.ac.uk/staff/rpoli/gp-field-guide/toc.html )
* [The Art of Computer Programming ](http://www.cs.utsa.edu/~wagner/knuth/ ) (fascicles, mostly volume 4)
* [Programming Pearls ](http://cs.bell-labs.com/cm/cs/pearls/ )
* [Algorithms for Programmers: Ideas and Source Code ](http://www.jjj.de/fxt/fxtbook.pdf ) (PDF)
* [Sequential and parallel sorting algorithms ](http://www.inf.fh-flensburg.de/lang/algorithmen/sortieren/algoen.htm )
* [Text Algorithms ](http://igm.univ-mlv.fr/~mac/REC/text-algorithms.pdf ) (PDF)
* [Problem Solving with Algorithms and Data Structures ](http://interactivepython.org/courselib/static/pythonds/index.html )
* [Data Structures Succinctly Part 1, Syncfusion ](http://www.syncfusion.com/resources/techportal/ebooks/datastructurespart1 ) (PDF, Kindle) *(Just fill the fields with any values)*
* [Data Structures Succinctly Part 2, Syncfusion ](http://www.syncfusion.com/resources/techportal/ebooks/datastructurespart2 ) (PDF, Kindle) *(Just fill the fields with any values)*
####Theoretical Computer Science
* [Structure and Interpretation of Computer Programs ](http://mitpress.mit.edu/sicp/ )
* [Programming Languages: Application and Interpretation ](http://www.cs.brown.edu/~sk/Publications/Books/ProgLangs/ )
* [Introduction to Computing ](http://www.computingbook.org/ )
* [An Introduction to the Theory of Computation ](http://www.cse.ohio-state.edu/~gurari/theory-bk/theory-bk.html )
* [Think Complexity ](http://www.greenteapress.com/compmod/ ) - Allen B. Downey
* [Network Science ](http://barabasilab.neu.edu/networksciencebook/index.html )
####Operating systems
* [The Art of Unix Programming ](http://catb.org/esr/writings/taoup/html/ )
* [The Little Book of Semaphores ](http://greenteapress.com/semaphores/ ) - Allen B. Downey
* [Operating Systems and Middleware ](https://gustavus.edu/mcs/max/os-book/ ) (PDF and LaTeX)
* [Practical File System Design:The Be File System ](http://www.nobius.org/~dbg/practical-file-system-design.pdf )(PDF) - Dominic Giampaolo
####Database
* [Database Fundamentals ](http://public.dhe.ibm.com/software/dw/db2/express-c/wiki/Database_fundamentals.pdf ) (PDF)
* [Database-backed Web Sites ](http://philip.greenspun.com/wtr/dead-trees/ )
* [Foundations of Databases ](http://webdam.inria.fr/Alice/ )
* [The Theory of Relational Databases ](http://web.cecs.pdx.edu/~maier/TheoryBook/TRD.html )
* [Mysql, see #Mysql ](#mysql )
####Networking
* [High-Performance Browser Networking ](http://chimera.labs.oreilly.com/books/1230000000545/index.html )
* [The TCP/IP Guide ](http://www.tcpipguide.com/free/t_toc.htm )
* [Understanding IP Addressing: Everything you ever wanted to know ](http://www.apnic.net/__data/assets/pdf_file/0020/8147/501302.pdf ) (PDF)
* [ZeroMQ Guide ](http://zguide.zeromq.org/page:all )
* [Network Security Tools ](http://commons.oreilly.com/wiki/index.php/Network_Security_Tools )
* [HTTP Succinctly, Syncfusion ](http://www.syncfusion.com/resources/techportal/ebooks/http ) (PDF, Kindle) *(Just fill the fields with any values)*
* [Computer Networking: Principles, Protocols and Practice (CNP3) ](http://inl.info.ucl.ac.be/CNP3 ) (PDF, EPUB, MOBI + [sources ](https://github.com/obonaventure/cnp3/tree/master/book )) - O. Bonaventure
* [Computer Networking: Principles, Protocols and Practice, 2nd edition (CNP3bis) ](http://cnp3bis.info.ucl.ac.be/ ) (PDF, EPUB + [sources ](https://github.com/obonaventure/cnp3/tree/master/book-2nd )) - O. Bonaventure (in progress)
####Compiler Design
* [Compiler Construction ](http://www.ethoberon.ethz.ch/WirthPubl/CBEAll.pdf ) (PDF)
* [Let's Build a Compiler ](http://www.stack.nl/~marcov/compiler.pdf ) (PDF)
* [Linkers and loaders ](http://www.iecc.com/linker/ )
* [Compiler Design: Theory, Tools, and Examples ](http://elvis.rowan.edu/~bergmann/books.html )
* [Practical and Theoretical Aspects of Compiler Construction ](http://www.stanford.edu/class/archive/cs/cs143/cs143.1128/ ) (class lectures and slides)
* [Basics of compiler design ](http://www.diku.dk/~torbenm/Basics/ ) - Torben Mogensen
####Programming Paradigms
* [Introduction to Functional Programming ](http://www.cl.cam.ac.uk/teaching/Lectures/funprog-jrh-1996/ ) (class lectures and slides)
* [Type Theory and Functional Programming ](https://www.cs.kent.ac.uk/people/staff/sjt/TTFP/ )
####Parallel Programming
* [How to Write Parallel Programs ](http://www.lindaspaces.com/book/ )
* [High Performance Computing ](http://cnx.org/content/col11136/latest ) (PDF, ePUB) - Charles Severance & Kevin Dowd
* [Is Parallel Programming Hard, And, If So, What Can You Do About It? ](http://kernel.org/pub/linux/kernel/people/paulmck/perfbook/perfbook.html )
* [Introduction to Parallel Computing ](https://computing.llnl.gov/tutorials/parallel_comp/ ) - Blaise Barney
* [Programming on Parallel Machines; GPU, Multicore, Clusters and More ](http://heather.cs.ucdavis.edu/parprocbook ) - Norm Matloff
####Software Architecture
* [Seamless Object-Oriented Software Architecture ](http://www.bon-method.com/book_print_a4.pdf ) (PDF)
* [How to write Unmaintainable Code ](http://mindprod.com/jgloss/unmain.html )
* [Object-Oriented Reengineering Patterns ](http://scg.unibe.ch/download/oorp/ )
* [Patterns and Practices: Application Architecture Guide 2.0 ](http://www.codeplex.com/AppArchGuide )
* [The Definitive Guide to Building Code Quality ](http://nexus.realtimepublishers.com/dgbcq.php )
* [Patterns of Software: Tales from the Software Community ](http://www.dreamsongs.com/Files/PatternsOfSoftware.pdf ) (PDF)
* [Best Kept Secrets of Peer Code Review ](http://smartbear.com/codecollab-code-review-book.php )
* [Domain Driven Design Quickly ](http://www.infoq.com/minibooks/domain-driven-design-quickly )
* [Essential Skills for Agile Development ](http://elliottback.com/wp/essential-skills-for-agile-development/ )
* [Guide to the Software Engineering Body of Knowledge ](http://www.computer.org/portal/web/swebok )
* [Programming Reliable Systems (Joe Armstrong's PhD thesis) ](http://www.sics.se/~joe/thesis/armstrong_thesis_2003.pdf ) (PDF)
* [How to Design Programs ](http://www.htdp.org/ )
* [NASA Manager Handbook for Software Development ](http://homepages.inf.ed.ac.uk/dts/pm/Papers/nasa-manage.pdf ) (PDF)
* [NASA Software Measurement Handbook ](http://www.scribd.com/doc/7181362/NASA-Software-Measurement-Guidebook )
* [Don't Just Roll the Dice ](http://www.neildavidson.com/dontjustrollthedice.html )
* [Data-Oriented Design ](http://www.dataorienteddesign.com/dodmain/dodmain.html )
* [Software Engineering for Internet Applications ](http://philip.greenspun.com/seia/ )
####Open Source Ecosystem
* [Data Journalism Handbook ](http://datajournalismhandbook.org/ )
* [Free Software, Free Society ](http://shop.fsf.org/product/free-software-free-society-2/ )
* [Getting started with Open source development ](http://public.dhe.ibm.com/software/dw/db2/express-c/wiki/Getting_started_with_open_source_development_p2.pdf ) (PDF)
* [Innovation Happens Elsewhere ](http://dreamsongs.com/IHE/IHE.html )
* [Producing Open Source Software ](http://producingoss.com/ )
* [The Cathedral and the Bazaar ](http://www.catb.org/esr/writings/cathedral-bazaar/ )
* [The Future of the Internet ](http://futureoftheinternet.org/ )
* [The Architecture of Open Source Applications: Vol. 1: Elegance, Evolution, and a Few Fearless Hacks; Vol. 2: Structure, Scale, and a Few More Feerless Hacks ](http://www.aosabook.org/en/index.html )
* [The Performance of Open Source Applications ](http://aosabook.org/en/ )
* [The Future of Ideas ](http://the-future-of-ideas.com/download/lessig_FOI.pdf )
####Information Retrieval
* [Introduction to Information Retrieval ](http://nlp.stanford.edu/IR-book/information-retrieval-book.html )
* [Information Retrieval: A Survey ](http://www.csee.umbc.edu/csee/research/cadip/readings/IR.report.120600.book.pdf ) (PDF)
####Datamining
* [Data Mining and Analysis: Fundamental Concepts and Algorithms ](http://www.dataminingbook.info/DokuWiki/doku.php ) (Draft)
* [Mining of Massive Datasets ](http://infolab.stanford.edu/~ullman/mmds.html )
* [The Elements of Statistical Learning ](http://www-stat.stanford.edu/~tibs/ElemStatLearn/ )
* [A Programmer's Guide to Data Mining ](http://guidetodatamining.com/ ) (Draft)
* [Theory and Applications for Advanced Text Mining ](http://www.intechopen.com/books/theory-and-applications-for-advanced-text-mining )
* [Internet Advertising: An Interplay among Advertisers, Online Publishers, Ad Exchanges and Web Users ](http://arxiv.org/pdf/1206.1754v2.pdf ) (PDF)
* [Data Mining Algorithms In R ](http://en.wikibooks.org/wiki/Data_Mining_Algorithms_In_R )
* [Introduction to Data Science ](http://jsresearch.net/wiki/projects/teachdatascience/Teach_Data_Science.html )
* [School of Data Handbook ](http://schoolofdata.org/handbook/ )
####Machine Learning
* [Programming Computer Vision with Python ](http://programmingcomputervision.com/ )
* [A Course in Machine Learning ](http://hackershelf.com/book/492/a-course-in-machine-learning/ )
* [Computer Vision: Algorithms and Applications ](http://hackershelf.com/book/134/computer-vision-algorithms-and-applications/ )
* [Bayesian Reasoning and Machine Learning ](http://web4.cs.ucl.ac.uk/staff/D.Barber/pmwiki/pmwiki.php?n=Brml.HomePage )
* [Introduction to Machine Learning ](http://alex.smola.org/drafts/thebook.pdf ) (PDF)
* [Gaussian Processes for Machine Learning ](http://www.gaussianprocess.org/gpml/ )
* [Information Theory, Inference, and Learning Algorithms ](http://www.inference.phy.cam.ac.uk/itila/ )
* [Artificial Intelligence | Machine Learning ](http://see.stanford.edu/see/materials/aimlcs229/handouts.aspx ) - Andrew Ng *(Notes, lectures, and problems)*
* [Probabilistic Models in the Study of Language ](http://idiom.ucsd.edu/~rlevy/pmsl_textbook/text.html ) (Draft, with R code)
* [Reinforcement Learning: An Introduction ](http://webdocs.cs.ualberta.ca/~sutton/book/ebook/the-book.html )
* [A First Encounter with Machine Learning ](https://www.ics.uci.edu/~welling/teaching/ICS273Afall11/IntroMLBook.pdf ) (PDF)
* [Learning Deep Architectures for AI ](http://www.iro.umontreal.ca/~bengioy/papers/ftml_book.pdf ) (PDF)
####Mathematics
* [Think Bayes: Bayesian Statistics Made Simple ](http://www.greenteapress.com/thinkbayes/ ) - Allen B. Downey
* [Think Stats: Probability and Statistics for Programmers ](http://greenteapress.com/thinkstats/ ) (code written in Python) - Allen B. Downey
* [Mathematical Logic - an Introduction ](http://www.ii.uib.no/~michal/und/i227/book/book.pdf ) (PDF)
* [Bayesian Methods for Hackers ](https://github.com/CamDavidsonPilon/Probabilistic-Programming-and-Bayesian-Methods-for-Hackers )
* [Introduction to Statistical Thought ](http://www.math.umass.edu/~lavine/Book/book.html )
* [Mathematics for Computer Science ](http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-042j-mathematics-for-computer-science-fall-2010/readings/ )
* [Category Theory for Computing Science ](http://www.math.mcgill.ca/triples/Barr-Wells-ctcs.pdf ) (PDF)
* [Essentials of Metaheuristics ](http://cs.gmu.edu/~sean/book/metaheuristics/ ) by Sean Luke
* [Advanced Data Analysis from an Elementary Point of View ](http://www.stat.cmu.edu/~cshalizi/ADAfaEPoV/ )
* [Probability and Statistics Cookbook ](http://matthias.vallentin.net/probability-and-statistics-cookbook/ )
* [A First Course in Linear Algebra ](http://linear.ups.edu/ )
* [Collaborative Statistics ](http://cnx.org/content/col10522/latest/ )
* [CK-12 Probability and Statistics - Advanced ](http://www.ck12.org/book/Probability-and-Statistics---Advanced-%2528Second-Edition%2529/ )
* [Concepts & Applications of Inferential Statistics ](http://vassarstats.net/textbook/ )
* [Introduction to Probability ](http://www.dartmouth.edu/~chance/teaching_aids/books_articles/probability_book/book.html )
* [OpenIntro Statistics ](http://www.openintro.org/stat/textbook.php )
* [Probability and Statistics EBook ](http://wiki.stat.ucla.edu/socr/index.php/Probability_and_statistics_EBook )
* [Statistics Done Wrong ](http://www.refsmmat.com/statistics/ ) - Alex Reinhart
####Misc
* [97 Things Every Programmer Should Know ](http://programmer.97things.oreilly.com/ )
* [97 Things Every Programmer Should Know - Extended ](https://leanpub.com/97-Things-Every-Programmer-Should-Know-Extended )
* [A Mathematical Theory of Communication ](http://cm.bell-labs.com/cm/ms/what/shannonday/paper.html ) by Claude E.Shannon
* [Asterisk™: The Definitive Guide ](http://asteriskdocs.org/en/3rd_Edition/asterisk-book-html-chunk/index.html )
* [How to Think Like a Computer Scientist ](http://openbookproject.net/thinkcs/ )
* [I Am a Bug ](http://www.amibug.com/iamabug/p01.html )
* [Learn to Program ](http://pine.fm/LearnToProgram/ )
* [Foundations of Programming ](http://codebetter.com/files/folders/codebetter_downloads/entry179694.aspx )
* [Communicating Sequential Processes ](http://www.usingcsp.com/cspbook.pdf ) (PDF) by Tony Hoare
* [Come, Let's Play: Scenario-Based Programming Using Live Sequence Charts ](http://www.scribd.com/doc/175241338/Come-Let-s-Play )
* [Computer Musings ](http://scpd.stanford.edu/knuth/index.jsp ) (lectures by Donald Knuth)
* [How Computers Work ](http://www.fastchip.net/howcomputerswork/p1.html )
* [Data-Intensive Text Processing with MapReduce ](http://www.umiacs.umd.edu/~jimmylin/MapReduce-book-final.pdf ) (PDF)
* [Designing Interfaces ](http://designinginterfaces.com ) by Jennifer Tidwell
* [Digital Signal Processing For Engineers and Scientists ](http://www.dspguide.com/ )
* [Distributed systems for fun and profit ](http://book.mixu.net/distsys/single-page.html )
* [Flow based Programming ](http://jpaulmorrison.com/fbp/#book )
* [Getting Real ](http://gettingreal.37signals.com/ )
* [Magic Ink: Information Software and The Graphical Interface ](http://worrydream.com/#!/MagicInk ) by Bret Victor
* [Modeling Reactive Systems with Statecharts ](http://www.scribd.com/doc/167971960/Modeling-Reactive-Systems-With-Statecharts )
* [PNG: The Definitive Guide ](http://www.libpng.org/pub/png/book/ )
* [Pointers And Memory ](http://cslibrary.stanford.edu/102/PointersAndMemory.pdf ) (PDF)
* [Programmer's Motivation for Beginners ](http://programmersmotivation.com/ )
* [Project Oberon ](http://www-old.oberon.ethz.ch/WirthPubl/ProjectOberon.pdf ) (PDF)
* [Security Engineering ](http://www.cl.cam.ac.uk/~rja14/book.html )
* [Small Memory Software ](http://www.smallmemory.com/book.html )
* [SVG Essentials ](http://commons.oreilly.com/wiki/index.php/SVG_Essentials )
* [Introduction to High-Performance Scientific Computing ](http://tacc-web.austin.utexas.edu/veijkhout/public_html/istc/istc.html ) - Victor Eijkhout
* [Object-Oriented Reengineering Patterns ](http://win.ua.ac.be/~sdemey/ ) - Serge Demeyer, Stéphane Ducasse and Oscar Nierstrasz
* [High-Performance Scientific Computing ](http://bit.ly/hpc12 ) (class lectures and slides)
* [Mother Tongues of Computer Languages ](http://www.digibarn.com/collections/posters/tongues/ ) (PNG)
* [Open Government;Collaboration, Transparency, and Participation in Practice ](https://github.com/oreillymedia/open_government )
####Web Performance
* [Book of Speed ](http://www.bookofspeed.com/index.html ) by Stoyan Stefanov
####MOOC
* [MIT OCW ](http://ocw.mit.edu/OcwWeb/web/home/home/index.htm )
* [Coursera ](https://www.coursera.org/ )
* [Udacity ](https://www.udacity.com/ )
* [edX ](https://www.edx.org/ )
####Professional Development
* [Don't Just Roll the Dice ](http://download.red-gate.com/ebooks/DJRTD_eBook.pdf ) (PDF) *(RedGate, By Neil Davidson)*
* [Confessions of an IT Manager ](http://download.red-gate.com/ebooks/DotNet/Confessions_IT_Manager.zip ) *(RedGate, By Phil Factor)*
####Cryptography
* [Handbook of Applied Cryptography ](http://cacr.uwaterloo.ca/hac/index.html )
###Ada
* [Ada 95: The Craft of Object-Oriented Programming ](http://faculty.cs.wwu.edu/reedyc/AdaResources/bookhtml/contents.htm )
* [Ada Distilled ](http://www.adapower.com/pdfs/AdaDistilled07-27-2003.pdf ) (PDF)
* [Ada for Software Engineers ](http://pnyf.inf.elte.hu/kto/oktatas/ada/books/ase.pdf ) (PDF)
* [The Big Online Book of Linux Ada Programming ](http://www.pegasoft.ca/resources/boblap/book.html )
###Agda
* [Agda Tutorial ](https://people.inf.elte.hu/divip/AgdaTutorial/Index.html )
###Android
* [Google Android Developer Training ](https://developer.android.com/training/index.html )
* [Coreservlets Android Programming Tutorial ](http://www.coreservlets.com/android-tutorial/ )
* [Expert Android and Eclipse development knowledge ](http://www.vogella.com/android.html )
* [Styling Android ](http://www.stylingandroid.com/ )
* [TechnoTalkative Android ](http://www.technotalkative.com/android/ )
###APL
* [A Practical Introduction to APL1 & APL2 ](http://aplwiki.com/BooksAndPublications#A_Practical_Introduction_to_APL1_.26_APL2 )
* [A Practical Introduction to APL2 & APL3 ](http://aplwiki.com/BooksAndPublications#A_Practical_Introduction_to_APL3_.26_APL4 )
* [Mastering Dyalog APL ](http://www.dyalog.com/intro/ ) (PDF)
###Autotools
* [GNU Autoconf, Automake and Libtool ](http://sourceware.org/autobook/ )
* [Autotools Mythbuster ](https://www.flameeyes.eu/autotools-mythbuster/ )
###ASP.NET MVC
* [ASP.NET MVC Music Store ](http://mvcmusicstore.codeplex.com/ )
* [NerdDinner Walkthrough ](http://weblogs.asp.net/scottgu/archive/2009/03/10/free-asp-net-mvc-ebook-tutorial.aspx )
###Assembly Language
* [Paul Carter's Tutorial on x86 Assembly ](http://drpaulcarter.com/pcasm/ )
* [Professional Assembly Language ](http://blog.hit.edu.cn/jsx/upload/AT%EF%BC%86TAssemblyLanguage.pdf ) (PDF)
* [Programming from the Ground Up ](http://download.savannah.gnu.org/releases/pgubook/ProgrammingGroundUp-1-0-booksize.pdf ) (PDF)
* [Software optimization resources by Agner Fog ](http://www.agner.org/optimize/ )
* [The Art of Assembly Language Programming ](http://cs.smith.edu/~thiebaut/ArtOfAssembly/artofasm.html )
* [x86 Assembly ](http://en.wikibooks.org/wiki/X86_Assembly )
* [Ralf Brown's Interrupt List ](http://www.ctyme.com/rbrown.htm )
* [Easy 6502 ](http://skilldrick.github.io/easy6502/ ) - Nick Morgan
####Non-X86
* [Machine Code for Beginners ](http://www.worldofspectrum.org/infoseekid.cgi?id=2000227 ) (PDF) by Lisa Watts and Mike Wharton [Z80 and 6502 CPUs]
* [Machine Language for Beginners ](http://archive.org/details/ataribooks-machine-language-for-beginners ) by Richard Mansfield [6502 CPU]
###Bash
* [Advanced Bash-Scripting Guide ](http://tldp.org/LDP/abs/html/ )
* [Bash Guide for Beginners ](http://www.tldp.org/LDP/Bash-Beginners-Guide/html/ ) by Machtelt Garrels
* [Lhunath's Bash Guide ](http://mywiki.wooledge.org/BashGuide )
* [The Command Line Crash Course ](http://learncodethehardway.org/cli/book/ ) (also a Powershell reference)
###C
* [A Tutorial on Pointers and Arrays in C ](http://home.netcom.com/~tjensen/ptr/pointers.htm )
* [Beej's Guide to C Programming ](http://beej.us/guide/bgc/ )
* [Beej's Guide to Network Programming ](http://beej.us/guide/bgnet/ )
* [The C book ](http://publications.gbdirect.co.uk/c_book/ )
* [Essential C ](http://cslibrary.stanford.edu/101/EssentialC.pdf ) (PDF)
* [Learn C the hard way ](http://c.learncodethehardway.org/book/ )
* [The new C standard - an annotated reference ](http://www.knosof.co.uk/cbook/cbook.html )
* [Object Oriented Programming in C ](http://www.planetpdf.com/codecuts/pdfs/ooc.pdf ) (PDF)
* [C Programming - Wikibooks ](http://en.wikibooks.org/wiki/Programming:C )
###C++
* [C++ Annotations ](http://cppannotations.sourceforge.net/ )
* [C++ GUI Programming With Qt 3 ](http://www.computer-books.us/cpp_0010.php )
* [CS106X Programming Abstractions in C++ ](http://www.stanford.edu/class/cs106x/ )
* [Matters Computational: Ideas, Algorithms, Source Code, by Jorg Arndt ](http://www.jjj.de/fxt/fxtbook.pdf ) (PDF)
* [Software optimization resources by Agner Fog ](http://www.agner.org/optimize/ )
* [Thinking in C++, Second Edition, Vol. 1. ](http://www.mindviewinc.com/downloads/TICPP-2nd-ed-Vol-one.zip ) [(Vol. 2) ](http://www.mindviewinc.com/downloads/TICPP-2nd-ed-Vol-two.zip )
* [How To Think Like a Computer Scientist: C++ Version ](http://greenteapress.com/thinkcpp/index.html ) - Allen B. Downey
* Also see: [The Definitive C++ Book Guide and List ](http://stackoverflow.com/q/388242/511601 )
* [C++ Succinctly, Syncfusion ](http://www.syncfusion.com/resources/techportal/ebooks/cplusplus ) (PDF, Kindle) *(Just fill the fields with any values)*
* [Learn C++. ](http://www.learncpp.com/ ) (PDF, Online)
* [Software Design Using C++ ](http://cis.stvincent.edu/html/tutorials/swd/ ) - Br. David Carlson and Br. Isidore Minerd
* [Introduction to Design Patterns in C++ with Qt ](http://ptgmedia.pearsoncmg.com/images/9780131879058/downloads/0131879057_Ezust_book.pdf )
* [Data Structures and Algorithms with Object-Oriented Design Patterns in C++ ](http://www.brpreiss.com/books/opus4/index.html )
###Clojure
* [A Brief Beginner’s Guide To Clojure ](http://www.unexpected-vortices.com/clojure/brief-beginners-guide/ )
* [Clojure - Functional Programming for the JVM ](http://java.ociweb.com/mark/clojure/article.html )
* [Clojure Cookbook ](https://github.com/clojure-cookbook/clojure-cookbook )
* [Clojure for the Brave and True ](http://www.braveclojure.com/ )
* [Clojure Programming ](http://en.wikibooks.org/wiki/Clojure_Programming )
* [The Clojure Style Guide ](https://github.com/bbatsov/clojure-style-guide )
* [Data Sorcery with Clojure ](http://data-sorcery.org/contents/ )
* [Modern cljs ](https://github.com/magomimmo/modern-cljs )
* [Clojure Koans ](http://clojurekoans.com/ )
###COBOL
* [COBOL Programming Fundamental ](http://ibmtc.hust.edu.cn/zos-cobol/cobol/resource/COBOL_Programming_Fundamental.pdf ) (PDF)
* [OpenCOBOL 1.1 - Programmer's Guide ](http://opencobol.add1tocobol.com/OpenCOBOL%20Programmers%20Guide.pdf ) (PDF)
###CoffeeScript
* [Smooth CoffeeScript ](http://autotelicum.github.com/Smooth-CoffeeScript/SmoothCoffeeScript.html )
* [The Little Book on CoffeeScript ](http://arcturo.github.com/library/coffeescript/ )
###ColdFusion
* [CFML In 100 Minutes ](https://github.com/mhenke/CFML-in-100-minutes/blob/master/cfml100mins.markdown )
* [Learn CF in a Week ](http://learncfinaweek.com/ )
###Coq
* [Software Foundations ](http://www.cis.upenn.edu/~bcpierce/sf/ )
* [Certified Programming with Dependent Types ](http://adam.chlipala.net/cpdt/html/toc.html )
###D
* [Programming in D ](http://ddili.org/ders/d.en/ )
###Dart
* [What is Dart? ](http://shop.oreilly.com/product/0636920025887.do )
###DTrace
* [IllumOS Dynamic Tracing Guide ](http://dtrace.org/guide/preface.html )
###DB2
* [Getting started with DB2 Express-C ](http://public.dhe.ibm.com/software/dw/db2/express-c/wiki/Getting_Started_with_DB2_Express_v9.7_p4.pdf ) (PDF)
* [Getting started with IBM Data Studio for DB2 ](http://public.dhe.ibm.com/software/dw/db2/express-c/wiki/Getting_Started_with_IBM_Data_Studio_for_DB2_p3.pdf ) (PDF)
* [Getting started with IBM DB2 development ](http://public.dhe.ibm.com/software/dw/db2/express-c/wiki/Getting_Started_with_DB2_App_Dev_p2.pdf ) (PDF)
###Delphi / Pascal
* [Essential Pascal Version 1 and 2 ](http://www.marcocantu.com/epascal/ )
###Elasticsearch
* [Exploring Elasticsearch ](http://exploringelasticsearch.com/ )
###Emacs
* [GNU Emacs Manual, 17th Edition, v. 24.2 ](http://shop.fsf.org/product/Emacs_Manual_24/ )
* [An Introduction to Programming in Emacs Lisp, 3rd Edition ](https://www.gnu.org/software/emacs/manual/html_node/eintr/index.html )
* [GNU Emacs Lisp Reference Manual ](http://www.gnu.org/software/emacs/manual/elisp.html )
###Erlang
* [Learn You Some Erlang For Great Good ](http://learnyousomeerlang.com/ )
* [Erlang Programming ](http://it-ebooks.info/book/325/ )
* [Programming Erlang ](http://www.e-reading.biz/bookreader.php/139986/Programming_Erlang.pdf )
* [Concurrent Programming in ERLANG ](http://www.erlang.org/download/erlang-book-part1.pdf )
###Flex
* [Getting started with Adobe Flex ](http://public.dhe.ibm.com/software/dw/db2/express-c/wiki/Getting_Started_with_Adobe_Flex_p2.pdf ) (PDF)
* [Adobe Flex 2, Programming Actionscript 3.0 ](http://download.macromedia.com/pub/documentation/en/flex/2/prog_actionscript30.pdf ) (PDF)
###F Sharp
* [F Sharp Programming ](http://en.wikibooks.org/wiki/F_Sharp_Programming ) in Wikibooks
* [Real World Functional Programming ](http://msdn.microsoft.com/en-us/library/hh314518.aspx ) (MSDN Chapters)
* [Programming Language Concepts for Software Developers ](http://www.itu.dk/courses/BPRD/E2009/plcsd-1-2.pdf ) (PDF)
* [F# Succinctly, SyncFusion ](http://www.syncfusion.com/resources/techportal/ebooks/fsharp ) (PDF, Kindle) *(Just fill the fields with any values)*
###Forth
* [Starting Forth ](http://home.iae.nl/users/mhx/sf.html )
* [Thinking Forth ](http://thinking-forth.sourceforge.net/ )
* [Programming Forth ](http://www.mpeforth.com/arena/ProgramForth.pdf ) (PDF)
* [A Beginner's Guide to Forth ](http://hackershelf.com/book/482/a-beginners-guide-to-forth/ )
* [And so Forth... ](http://ficl.sourceforge.net/pdf/Forth_Primer.pdf ) (PDF)
* [Thoughtful Programming and Forth ](http://www.ultratechnology.com/forth.htm )
###Git
* [Pro Git ](http://git-scm.com/book )
* [Git From The Bottom Up ](http://ftp.newartisans.com/pub/git.from.bottom.up.pdf ) (PDF)
* [Git Immersion ](http://gitimmersion.com )
* [Git internals ](https://github.com/pluralsight/git-internals-pdf/raw/master/drafts/peepcode-git.pdf ) (PDF)
* [Git Magic ](http://www-cs-students.stanford.edu/~blynn/gitmagic/ )
* [Git Reference ](http://www.gitref.org )
* [Version Control by Example (Mercurial, Subversion, Verasity) ](http://www.ericsink.com/vcbe/ )
* [Git Succinctly, Syncfusion ](http://www.syncfusion.com/resources/techportal/ebooks/git ) (PDF, Kindle) *(Just fill the fields with any values)*
* [Think Like (a) Git: A Guide for the Perplexed ](http://think-like-a-git.net )
* [Git In The Trenches ](http://cbx33.github.io/gitt/index.html )
* [Conversational Git ](http://blog.anvard.org/conversational-git/ )
###Go
* [The Go Tutorial ](http://golang.org/doc/go_tutorial.html )
* [Go by Example ](https://gobyexample.com/ )
* [Learning Go ](http://www.miek.nl/projects/learninggo/ )
* [An Introduction to Programming in Go ](http://www.golang-book.com/ )
* [Network programming with Go ](http://jan.newmarch.name/go/ )
###Grails
* [Getting Started with Grails ](http://www.infoq.com/minibooks/grails-getting-started )
###Hadoop
* [Hadoop Illuminated ](http://hadoopilluminated.com/book.php ) - Mark Kerzner & Sujee Maniyam
* [Programming Pig ](http://chimera.labs.oreilly.com/books/1234000001811/index.html ) - Alan Gates
###Haskell
* [A Haskell School of Music ](http://haskell.cs.yale.edu/?post_type=publication&p=112 ) (PDF) (work in progress)
* [Beautiful Code, Compelling Evidence ](http://vis.renci.org/jeff/2009/01/16/beautiful-code-compelling-evidence/ ) (PDF)
* [Haskell and Yesod ](http://www.yesodweb.com/book-1.2 )
* [Learn You a Haskell ](http://learnyouahaskell.com/ )
* [Natural Language Processing for the Working Programmer ](http://nlpwp.org/book/index.xhtml )
* [Parallel and Concurrent Programming in Haskell ](http://chimera.labs.oreilly.com/books/1230000000929 )
* [Real World Haskell ](http://book.realworldhaskell.org/ )
* [Wikibook Haskell ](http://en.wikibooks.org/wiki/Haskell )
* [Yet Another Haskell Tutorial ](http://hal3.name/docs/daume02yaht.pdf ) (PDF)
* [Haskell no panic ](http://lisperati.com/haskell/ )
* [A Gentle Introduction to Haskell ](http://www.haskell.org/tutorial/ )
* [Speeding Through Haskell ](http://www.sthaskell.com/ )
* [Learn Haskell Fast and Hard ](http://yannesposito.com/Scratch/en/blog/Haskell-the-Hard-Way )
* [Haskell web Programming ](http://yannesposito.com/Scratch/fr/blog/Yesod-tutorial-for-newbies/ ) (Yesod tutorial)
* [The Haskell Road to Logic, Math and Programming ](http://fldit-www.cs.uni-dortmund.de/~peter/PS07/HR.pdf ) (PDF)
###HTML / CSS
* [Dive Into HTML5 ](http://diveintohtml5.info/ ) ([PDF](http://mislav.uniqpath.com/2011/10/dive-into-html5/))
* [GA Dash ](http://dash.generalassemb.ly )
* [HTML Dog Tutorials ](http://www.htmldog.com/ )
* [HTML5 Canvas ](http://chimera.labs.oreilly.com/books/1234000001654/index.html ) - Steve Fulton & Jeff Fulton
* [HTML5 for Publishers ](http://chimera.labs.oreilly.com/books/1234000000770/index.html ) - Sanders Kleinfeld
* [HTML5 For Web Designers ](http://html5forwebdesigners.com/ ) - Jeremy Keith
* [Learn CSS Layout ](http://learnlayout.com/ )
###Icon
* [The Implementation of the Icon Programming Language ](http://www.cs.arizona.edu/icon/ibsale.htm )
###IDL
* [Getting Started with IDL ](http://www.astro.virginia.edu/class/oconnell/astr511/IDLresources/getting-started-IDL-v7.0.pdf )
* [Guide to Using IDL for Astronomers ](http://www.astro.virginia.edu/class/oconnell/astr511/IDLresources/IDLguide.html )
###iOS
* [iOS Succinctly, Syncfusion ](http://www.syncfusion.com/resources/techportal/ebooks/ios ) (PDF, Kindle) *(Just fill the fields with any values)*
* [Start Developing iOS Apps Today ](https://developer.apple.com/library/ios/referencelibrary/GettingStarted/RoadMapiOS/RoadMapiOS.pdf ) (PDF)
###J
* [Learning J by Roger Stokes- online ](http://www.rogerstokes.free-online.co.uk/book.htm ) || [pdf ](http://www.elliscave.com/APL_J/Learning_J.pdf )
* [J for C Programmers by Henry Rich- online ](http://www.jsoftware.com/help/jforc/contents.htm ) || [pdf ](http://www.jsoftware.com/jwiki/HenryRich?action=AttachFile&do=get&target=JforC20071003.pdf ) || [word 2003 file ](http://www.jsoftware.com/jwiki/HenryRich?action=AttachFile&do=get&target=JforC20070929.doc )
* [J Reference Card ](http://www.jsoftware.com/jwiki/HenryRich?action=AttachFile&do=view&target=J602_RefCard_color_letter_current.pdf ) (PDF)
* [Brief Reference by Chris Burke and Clifford Reiter ](http://www.jsoftware.com/books/pdf/brief.pdf )(PDF)
* [Computers and Mathematical Notation by Kenneth E Iverson ](http://www.jsoftware.com/papers/camn.htm )
* [Easy J by Linda Alvord, Norman Thomson - pdf ](http://www.jsoftware.com/books/pdf/easyj.pdf ) || [Word DOC ](http://www.jsoftware.com/books/doc/easyj_doc.zip )
* [Math for the Layman by Kenneth E Iverson ](http://www.jsoftware.com/books/pdf/mftl.zip ) (zipped html+images)
* [Exploring Math by Kenneth E Iverson ](http://www.jsoftware.com/books/pdf/expmath.pdf ) (PDF)
* [Arithmetic by Kenneth E Iverson ](http://www.jsoftware.com/books/pdf/arithmetic.pdf ) (PDF)
* [Calculus by Kenneth E Iverson ](http://www.jsoftware.com/books/pdf/calculus.pdf )(PDF)
* [Concrete Math Companion by Kenneth E Iverson ](http://www.jsoftware.com/books/pdf/cmc.pdf ) (PDF)
* [J Primer ](http://www.jsoftware.com/help/primer/contents.htm )
###Java
* [Artificial Intelligence - Foundation of Computational Agents ](http://artint.info/html/ArtInt.html )
* [Data Structures and Algorithms with Object-Oriented Design Patterns in Java ](http://www.brpreiss.com/books/opus5/html/page9.html )
* [Category wise tutorials - J2EE ](http://www.mkyong.com/ )
* [Think Java: How to Think Like a Computer Scientist ](http://greenteapress.com/thinkapjava/ ) - Allen B. Downey
* [Introduction to Programming Using Java ](http://math.hws.edu/javanotes/ ) - David J. Eck
* [Java Application Development on Linux by Carl Albing and Michael Schwarz (PDF) ](http://www.phptr.com/content/images/013143697X/downloads/013143697X_book.pdf ) (PDF)
* [The Java EE6 Tutorial ](http://download.oracle.com/javaee/6/tutorial/doc/javaeetutorial6.pdf ) (PDF)
* [Java Thin-Client Programming ](http://www.redbooks.ibm.com/redbooks/SG245118.html )
* [Learning Java ](http://chimera.labs.oreilly.com/books/1234000001805/index.html ) - Patrick Niemeyer
* [OSGi in Practice ](http://njbartlett.name/files/osgibook_preview_20091217.pdf ) (PDF)
* [Sun's Java Tutorials ](http://download.oracle.com/javase/tutorial/ )
* [Thinking in Java ](http://www.mindview.net/Books/TIJ/ )
* [OOP - Learn Object Oriented Thinking & Programming ](http://pub.bruckner.cz/titles/oop ) - Rudolf Pecinovsky
* [The Java Language Specification ](http://java.sun.com/docs/books/jls/ ) - James Gosling, Bill Joy, Guy Steele, Gilad Bracha
* [The Java Tutorial 4th Edition ](http://download.oracle.com/javase/tutorial/ ) - Sharon Zakhour, Scott Hommel, Jacob Royal, Isaac Rabinovitch, Tom Risser, Mark Hoeber
* [Core Servlets and JavaServer Pages ](http://pdf.coreservlets.com/ ) - Marty Hall and Larry Brown
* [Introduction to Programming Using Java ](http://math.hws.edu/javanotes/ ) - David J. Eck
* [Introduction to Programming in Java ](http://introcs.cs.princeton.edu/java/home/ )- Robert Sedgewick and Kevin Wayne
* [Introduction to Neural Networks with Java ](http://www.heatonresearch.com/articles/series/1 ) -
* [Animation/Games in Java ](http://www.heatonresearch.com/articles/series/3 )
* [Java for the Beginning Programmer ](http://www.heatonresearch.com/articles/series/15 )
* [HTTP Programming Recipes for Java Bots ](http://www.heatonresearch.com/articles/series/16 )
* [Tutorial: Java, Maven 2, Eclipse & JSF ](http://www.lulu.com/shop/arulkumaran-kumaraswamipillai-and-sivayini-arulkumaran/tutorial-java-maven-2-eclipse-jsf/ebook/product-1603040.html;jsessionid=E57B1E8662500F2ADF96D7B317769B6E ) - Arulkumaran Kumaraswamipillai, Sivayini Arulkumaran
####Wicket
* [Official Free Online Guide for Apache Wicket framework ](http://wicket.apache.org/guide/ )
###JavaScript
* [Crockford's JavaScript ](http://www.crockford.com/javascript/ ) - Douglas Crockford
* [Eloquent JavaScript ](http://eloquentjavascript.net/ ) - Marijn Haverbeke
* [Learning JavaScript Design Patterns ](http://www.addyosmani.com/resources/essentialjsdesignpatterns/book/ ) - Addy Osmani
* [JavaScript Bible ](http://media.wiley.com/product_ancillary/28/07645334/DOWNLOAD/all.pdf ) (PDF)
* [JavaScript Essentials ](http://www.techotopia.com/index.php/JavaScript_Essentials )
* [jQuery Fundamentals ](http://jqfundamentals.com/book/ ) (starts with JavaScript basics)
* [Mozilla Developer Network's JavaScript Guide ](https://developer.mozilla.org/en/JavaScript/Guide )
* [JavaScript Allongé ](https://leanpub.com/javascript-allonge/read )
* [O'Reilly Programming JavaScript Applications - Early Release ](http://chimera.labs.oreilly.com/books/1234000000262/index.html )
* [The JavaScript Tutorial ](http://javascript.info/ )
* [Javascript Succinctly, Syncfusion ](http://www.syncfusion.com/resources/techportal/ebooks/javascript ) (PDF, Kindle) *(Just fill the fields with any values)*
* [Dev Docs ](http://devdocs.io/ )
* [Managing Space and Time with JavaScript - Book 1: The Basics ](http://www.noelrappin.com/ ) - Noel Rappin
* [Learn to Code JavaScript by Playing a Game ](http://codecombat.com )
####Angular.js
* [AngularJS in 60 Minutes ](http://fastandfluid.com/publicdownloads/AngularJSIn60MinutesIsh_DanWahlin_May2013.pdf ) (PDF)
####Backbone.js
* [Developing Backbone.js Applications ](http://addyosmani.github.io/backbone-fundamentals/ )
* [A Complete guide for learning Backbone.js ](http://www.codebeerstartups.com/2012/12/a-complete-guide-for-learning-backbone-js/ )
* [Backbonejs Tutorials ](http://backbonetutorials.com/ )
* [A pragmatic guide to Backbone.js apps ](http://pragmatic-backbone.com/ )
####D3.js
* [Interactive Data Visualization for the Web ](http://chimera.labs.oreilly.com/books/1230000000345/index.html )
* [D3 Tips and Tricks ](https://leanpub.com/D3-Tips-and-Tricks )
* [Dashing D3.js ](https://www.dashingd3js.com/table-of-contents )
* [Interactive Data Visualization with D3 ](http://alignedleft.com/tutorials/d3 )
####jQuery
* [jQuery Succinctly, Syncfusion ](http://www.syncfusion.com/resources/techportal/ebooks/jquery ) (PDF, Kindle) *(Just fill the fields with any values)*
####Knockout.js
* [Knockout.js Succinctly ](http://www.syncfusion.com/resources/techportal/ebooks/knockoutjs ) (PDF, Kindle) *(Just fill the fields with any values)*
####Node.js
* [Mastering Node.js ](http://visionmedia.github.com/masteringnode/ )
* [Mixu's Node Book ](http://book.mixu.net/node/ )
* [The Node Beginner Book ](http://nodebeginner.org/ )
* [Up and Running with Node ](http://ofps.oreilly.com/titles/9781449398583/ )
###LaTeX
* [The Not So Short Introduction to LaTeX ](http://tobi.oetiker.ch/lshort/lshort.pdf ) (PDF)
* [LaTeX Wikibook ](http://en.wikibooks.org/wiki/LaTeX )
See also [TeX ](#tex )
###Linux
* [Advanced Linux Programming ](http://www.advancedlinuxprogramming.com/ )
* [Getting Started with Ubuntu ](http://ubuntu-manual.org/ )
* [GNU Autoconf, Automake and Libtool ](http://sources.redhat.com/autobook/download.html )
* [GTK+/Gnome Application Development ](http://www.linuxtopia.org/online_books/gui_toolkit_guides/gtk+_gnome_application_development/index.html )
* [The Debian Administrator's Handbook ](http://debian-handbook.info/ )
* [The Linux Command Line ](http://linuxcommand.org/tlcl.php ) (PDF)
* [The Linux Development Platform (PDF) ](http://www.informit.com/content/downloads/perens/0130091154.pdf ) (PDF)
* [Linux Device Drivers ](http://lwn.net/Kernel/LDD3/ ) by Jonathan Corbet, Alessandro Rubini, and Greg Kroah-Hartman
* [Linux Kernel in a Nutshell ](http://www.kroah.com/lkn/ )
* [The Linux Kernel Module Programming Guide ](http://tldp.org/LDP/lkmpg/2.6/html/ )
* [Secure Programming for Linux and Unix ](http://www.dwheeler.com/secure-programs/Secure-Programs-HOWTO.html )
* [Linux from Scratch ](http://www.linuxfromscratch.org/lfs/view/stable/ )
* [Ubuntu Pocket Guide and Reference ](http://www.ubuntupocketguide.com/index_main.html )
* [What Every Programmer Should Know About Memory ](http://www.akkadia.org/drepper/cpumemory.pdf ) (PDF)
* [Learning Debian GNU/Linux ](http://oreilly.com/openbook/debian/book/index.html )
###Lisp
* [Common Lisp the Language, 2nd Edition ](http://www.cs.cmu.edu/Groups/AI/html/cltl/mirrors.html )
* [Common Lisp: A Gentle Introduction to Symbolic Computation ](http://www.cs.cmu.edu/~dst/LispBook/ ) - David S. Touretzky
* [Common Lisp Quick Reference ](http://clqr.boundp.org/ )
* [Let Over Lambda - 50 Years of Lisp ](http://letoverlambda.com/index.cl/toc )
* [Natural Language Processing in Lisp ](http://www.informatics.susx.ac.uk/research/groups/nlp/gazdar/nlp-in-lisp/index.html )
* [On Lisp ](http://www.paulgraham.com/onlisp.html )
* [Practical Common Lisp ](http://www.gigamonkeys.com/book/ )
* [Successful Lisp: How to Understand and Use Common Lisp ](http://psg.com/~dlamkins/sl/ ) - David Lamkins
* [Sketchy LISP ](http://www.bcl.hamilton.ie/~nmh/t3x.org/zzz/ ) - Nils Holm
* [Lisp Koans ](https://github.com/google/lisp-koans )
* [Casting Spels in Lisp ](http://www.lisperati.com/casting.html )
* [Structure and Interpretation of Computer Programs ](http://mitpress.mit.edu/sicp/ )
###Lua
* [Programming In Lua ](http://www.lua.org/pil/ ) (for version 5)
* [Programming Gems ](http://www.lua.org/gems/ )
* [Lua 5.1 Reference Manual ](http://www.lua.org/manual/5.1/ )
###Mathematica
* [Mathematica® programming: an advanced introduction by Leonid Shifrin ](http://www.mathprogramming-intro.org/ )
* [Stephen Wolfram's The Mathematica Book ](http://reference.wolfram.com/legacy/v5_2/ )
* [Wolfram Mathematica Tutorial Collection ](http://www.wolfram.com/learningcenter/tutorialcollection/ )
* [Basics of Algebra, Topology, and Differential Calculus ](http://www.cis.upenn.edu/~jean/math-basics.pdf )
###Maven
* [Better Builds with Maven ](http://www.maestrodev.com/better-build-maven )
* [Maven by Example ](http://www.sonatype.com/books/mvnex-book/reference/public-book.html )
* [Maven: The Complete Reference ](http://www.sonatype.com/books/mvnref-book/reference/public-book.html )
* [Repository Management with Nexus ](http://www.sonatype.com/books/nexus-book/reference/ )
* [Developing with Eclipse and Maven ](http://www.sonatype.com/books/m2eclipse-book/reference/ )
###Mercurial
* [Mercurial: The Definitive Guide ](http://hgbook.red-bean.com/ )
* [HGInit - Mercurial Tutorial by Joel Spolsky ](http://hginit.com/ )
###MySQL
* [MySQL Tutorial Excerpt ](http://downloads.mysql.com/docs/mysql-tutorial-excerpt-5.1-en.pdf )
###.NET (C# / VB / Nemerle / Visual Studio)
* [C# Essentials ](http://www.techotopia.com/index.php/C_Sharp_Essentials )
* [C# Programming - Wikibook ](http://en.wikibooks.org/wiki/C_Sharp_Programming )
* [C# Yellow Book ](http://www.csharpcourse.com/ ) (intro to programming)
* [Charles Petzold's .NET Book Zero ](http://www.charlespetzold.com/dotnet/index.html )
* [Data Structures and Algorithms with Object-Oriented Design Patterns in C# ](http://www.brpreiss.com/books/opus6/ )
* [Entity Framework ](http://weblogs.asp.net/zeeshanhirani/archive/2008/12/05/my-christmas-present-to-the-entity-framework-community.aspx )
* [Moving to Microsoft Visual Studio 2010 ](http://blogs.msdn.com/b/microsoft_press/archive/2010/09/13/free-ebook-moving-to-microsoft-visual-studio-2010.aspx )
* [Nemerle ](http://asaha.com/ebook/AMTQ2NjA-/Nemerle.pdf ) (PDF)
* [Threading in C# ](http://www.albahari.com/threading/ )
* [Visual Basic Essentials ](http://www.techotopia.com/index.php/Visual_Basic_Essentials )
* [Visual Studio Tips and Tricks ](http://www.infoq.com/minibooks/vsnettt ) (VS 2003-2005 only)
* [Under the Hood of .NET Memory Management ](http://download.red-gate.com/ebooks/DotNet/Under_the_Hood_of_.NET_Management.pdf ) (PDF) *(RedGate, By Chris Farrell and Nick Harrison)*
* [Practical Performance Profiling: Improving the efficiency of .NET code ](http://www.red-gate.com/products/dotnet-development/ants-performance-profiler/entrypage/practical-performance-profiling ) *(RedGate, By Jean-Philippe Gouigoux)*
* [.NET Performance Testing and Optimization - The Complete Guide ](http://download.red-gate.com/ebooks/DotNet/Perf_Test_and_opt_eBook.zip ) *(RedGate, By Paul Glavich and Chris Farrell)*
* [HTTP Programming Recipes for C# Bots ](http://www.heatonresearch.com/articles/series/20 )
###NoSQL
* [CouchDB: The Definitive Guide ](http://books.couchdb.org/relax/ )
* [The Little MongoDB Book ](http://openmymind.net/2011/3/28/The-Little-MongoDB-Book )
* [The Little Redis Book ](http://openmymind.net/2012/1/23/The-Little-Redis-Book/ )
* [The Little Riak Book ](http://littleriakbook.com/ )
* [Graph Databases ](http://graphdatabases.com/ )
* [MongoDB Koans ](https://github.com/chicagoruby/MongoDB_Koans )
###Oberon
* [Programming in Oberon ](http://www-old.oberon.ethz.ch/WirthPubl/ProgInOberon.pdf ) (PDF)
* [Object-Oriented Programming in Oberon-2 ](http://ssw.jku.at/Research/Books/Oberon2.pdf ) (PDF)
###Objective-C
* [Programming With Objective-C ](https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/ProgrammingWithObjectiveC.pdf ) (PDF)
* [Object-Oriented Programming with Objective-C ](http://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/OOP_ObjC/OOP_ObjC.pdf ) (PDF)
* [Objective-C Succinctly, Syncfusion ](http://www.syncfusion.com/resources/techportal/ebooks/objective-c ) (PDF, Kindle) *(Just fill the fields with any values)*
###OCaml
* [Introduction to Objective Caml ](http://courses.cms.caltech.edu/cs134/cs134b/book.pdf ) (PDF)
* [Objective Caml for Scientists (first chapter only) ](http://www.ffconsultancy.com/products/ocaml_for_scientists/chapter1.html )
* [Unix System Programming in OCaml ](http://ocamlunix.forge.ocamlcore.org/ )
* [Developing Applications With Objective Caml ](http://caml.inria.fr/pub/docs/oreilly-book/ )
* [Real World OCaml ](https://realworldocaml.org/beta3/en/html/ )
* [Think OCaml ](http://greenteapress.com/thinkocaml/index.html ) - Allen B. Downey and Nicholas Monje
###Octave
* [Octave Programming ](http://en.wikibooks.org/wiki/Octave_Programming_Tutorial )
###OpenSCAD
* [OpenSCAD User Manual ](http://en.wikibooks.org/wiki/OpenSCAD_User_Manual )
###Oracle Server
* [Oracle's Guides and Manuals ](http://tahiti.oracle.com/ )
###Oracle PL/SQL
* [PL/SQL Language Reference ](http://download.oracle.com/docs/cd/E11882_01/appdev.112/e17126/toc.htm )
* [PL/SQL Packages and Types Reference ](http://download.oracle.com/docs/cd/E11882_01/appdev.112/e16760/toc.htm )
* [Steven Feuerstein's PL/SQL Obsession - Videos and Presentations ](http://www.toadworld.com/platforms/oracle/w/wiki/8243.plsql-obsession.aspx )
###Parrot / Perl 6
* [Using Perl 6 ](http://github.com/perl6/book/ ) (work in progress)
###Perl
* [Beginning Perl ](http://www.perl.org/books/beginning-perl/ )
* [Embedding Perl in HTML with Mason ](http://www.masonbook.com/book/ )
* [Essential Perl ](http://cslibrary.stanford.edu/108/EssentialPerl.pdf ) (PDF)
* [Extreme Perl ](http://www.extremeperl.org/bk/home )
* [Higher-Order Perl ](http://hop.perl.plover.com/book/ )
* [The Mason Book ](http://www.masonbook.com/book/ )
* [Modern Perl 5 ](http://www.onyxneon.com/books/modern_perl/index.html )
* [Perl & LWP ](http://lwp.interglacial.com/index.html )
* [Perl for the Web ](http://www.globalspin.com/thebook/ )
* [Perl Free Online EBooks ](http://linkmingle.com/list/13-plus-List-of-Free-Great-Perl-Books-available-Online-freebooksandarticles ) (meta-list)
* [Learning Perl The Hard Way ](http://www.greenteapress.com/perl/ )
* [Practical mod\_perl ](http://modperlbook.org/ )
* [Web Client Programming with Perl ](http://oreilly.com/openbook/webclient/ )
* [Plack Handbook ](http://handbook.plackperl.org/ )
* [Exploring Programming Language Architecture in Perl ](http://www.billhails.net/Book/ )
###PHP
* [PHP Essentials ](http://www.techotopia.com/index.php/PHP_Essentials )
* [PHP: The Right Way ](http://www.phptherightway.com/ )
* [Practical PHP Programming ](http://www.tuxradar.com/practicalphp ) (wiki containing O'Reilly's *PHP In a Nutshell* )
* [Symfony2 ](http://symfony.com/doc/current/book/index.html )
* [Zend Framework: Survive the Deep End ](http://www.survivethedeepend.com/ )
* Laravel Framework
* [Official Documentation (Offline Version) ](https://leanpub.com/l4-offline-doc )
* Drupal Framework
* Drupal 6
* Drupal 7
* [The Tiny Book of Rules ](https://drupal.org/files/tiny-book-of-rules.pdf ) (PDF)
* [Master Drupal in 7 hours ](http://dl.dropboxusercontent.com/u/54624702/Master%20Drupal%20in%207%20hours_v1.1.pdf ) (PDF)
* Drupal 8
* [PHP Internals Book ](http://www.phpinternalsbook.com/ )
* [PHP Best Practices ](https://phpbestpractices.org/ )
* [PHP Programming ](http://en.wikibooks.org/wiki/PHP_Programming )
* [PHP with Guru99 ](http://www.smashwords.com/books/view/324888 )
* [Practical Php Testing ](http://www.giorgiosironi.com/2009/12/practical-php-testing-is-here.html )
* [Practical PHP Programming ](http://www.tuxradar.com/practicalphp )
###PowerShell
* [Mastering PowerShell ](http://powershell.com/cs/blogs/ebook/ )
###Processing
* [The Nature of Code: Simulating Natural Systems with Processing ](http://natureofcode.com/book/ )
###Prolog
* [Adventure in Prolog ](http://www.amzi.com/AdventureInProlog/advfrtop.htm )
* [Applications of Prolog ](http://bookboon.com/int/student/it/applications-of-prolog )
* [Building Expert Systems in Prolog ](http://www.amzi.com/ExpertSystemsInProlog/ )
* [Introduction to Prolog for Mathematicians ](http://www.j-paine.org/prolog/mathnotes/files/pms/pms.html )
* [Learn Prolog Now! ](http://www.learnprolognow.org/ )
* [Logic, Programming and Prolog (2ed) ](http://www.ida.liu.se/~ulfni/lpp/ )
* [Natural Language Processing Techniques in Prolog ](http://cs.union.edu/~striegnk/courses/nlp-with-prolog/html/ )
* [Prolog Techniques ](http://bookboon.com/int/student/it/prolog-techniques-applications-of-prolog )
* [Simply Logical ](http://www.cs.bris.ac.uk/~flach/SimplyLogical.html )
* [Visual Prolog 7.2 for Tyros ](http://download.pdc.dk/vip/72/books/tyros/tyros72.pdf ) (PDF)
###PostgreSQL
* [Practical PostgreSQL ](http://www.commandprompt.com/ppbook/ )
###Python
* [Byte of Python ](http://www.swaroopch.com/notes/Python )
* [Data Structures and Algorithms in Python ](http://www.brpreiss.com/books/opus7/html/book.html )
* [Dive into Python ](http://www.diveintopython.net/ )
* [Dive into Python 3 ](http://getpython3.com/diveintopython3/ )
* [Google's Python Class ](https://developers.google.com/edu/python/?hl=de-DE&csw=1 )
* [Hacking Secret Cyphers with Python ](http://inventwithpython.com/hacking/chapters/ ) - Al Sweigart
* [Hitchiker's Guide to Python! ](http://docs.python-guide.org/en/latest/ )
* [How to Think Like a Computer Scientist: Learning with Python ](http://www.greenteapress.com/thinkpython/thinkCSpy/ )
* [How to Think Like a Computer Scientist: Learning with Python, Interactive Edition ](http://interactivepython.org/courselib/static/thinkcspy/index.html )
* [Introduction to Programming Using Python ](http://python-ebook.blogspot.com ) - Cody Jackson
* [Invent Your Own Computer Games With Python ](http://inventwithpython.com/chapters/ ) - Al Sweigart
* [Learn Python The Hard Way ](http://learnpythonthehardway.org/book/ )
* [Lectures on scientific computing with python ](https://github.com/jrjohansson/scientific-python-lectures ) - J.R. Johansson
* [Making Games with Python & Pygame ](http://inventwithpython.com/pygame/chapters/ ) - Al Sweigart
* [Natural Language Processing with Python ](http://www.nltk.org/book )
* [Porting to Python 3: An In-Depth Guide ](http://python3porting.com/ )
* [Python Bibliotheca ](http://openbookproject.net/pybiblio/ )
* [Python Cookbook ](http://chimera.labs.oreilly.com/books/1230000000393/index.html ) - David Beazley
* [Python for Fun ](http://www.openbookproject.net/py4fun/ )
* [Python for Informatics: Exploring Information ](http://www.pythonlearn.com/book.php )
* [Python for you and me ](http://pymbook.readthedocs.org/en/latest/ )
* [Python Practice Book ](http://anandology.com/python-practice-book/index.html )
* [Python Programming ](http://upload.wikimedia.org/wikipedia/commons/9/91/Python_Programming.pdf ) - PDF
* [Python Scientific Lecture Notes ](http://scipy-lectures.github.io/ )
* [Snake Wrangling For Kids ](http://www.briggs.net.nz/snake-wrangling-for-kids.html )
* [The Art and Craft of Programming ](http://beastie.cs.ua.edu/cs150/book/index.html )
* [The Programming Historian ](http://niche-canada.org/files/programming-historian-1.pdf ) - William J. Turkel, Adam Crymble and Alan MacEachern
* [Think Python ](http://www.greenteapress.com/thinkpython/ ) - Allen B. Downey
* [Problem Solving with Algorithms and Data Structures ](http://interactivepython.org/courselib/static/pythonds/index.html )
* [Python Module of the Week ](http://pymotw.com/2/ )
* [Wikibooks: Python Programming ](http://en.wikibooks.org/wiki/Python_Programming )
* [Python Koans ](https://github.com/gregmalcolm/python_koans )
* [Test-Driven Web Development with Python ](http://chimera.labs.oreilly.com/books/1234000000754/index.html )
* [Python Standard Library ](http://effbot.org/librarybook/ ) - Fredrik Lundh
* [Building Skills in Python ](http://www.itmaybeahack.com/book/python-2.6/latex/BuildingSkillsinPython.pdf )
* [Building Skills in Object-Oriented Design (Python) ](http://www.itmaybeahack.com/book/oodesign-python-2.1/latex/BuildingSkillsinOODesign.pdf )
* [Text Processing in Python ](http://gnosis.cx/TPiP/ )
####Django
* [Djen of Django ](http://agiliq.com/books/djenofdjango/ )
* [Django by Example ](http://www.lightbird.net/dbe/ )
* [Django by Example for Django 1.5 ](http://lightbird.net/dbe2/ )
* [Tango With Django ](http://www.tangowithdjango.com/book/ )
* [Deploy Django ](http://www.deploydjango.com )
####Flask
* [The Flask Mega-Tutorial ](http://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-i-hello-world )
###R
* [The R Inferno ](http://www.burns-stat.com/pages/Tutor/R_inferno.pdf ) (PDF)
* [The R Manuals ](http://cran.r-project.org/manuals.html )
* [The R Language ](http://stat.ethz.ch/R-manual/R-patched/doc/html/ )
* [R by example ](http://www.mayin.org/ajayshah/KB/R/index.html )
* [Introduction to Probability and Statistics Using R ](http://cran.r-project.org/web/packages/IPSUR/vignettes/IPSUR.pdf ) (PDF)
* [Advanced R Programming ](http://adv-r.had.co.nz/ )
* [R practicals ](http://www.columbia.edu/~cjd11/charles_dimaggio/DIRE/resources/R/practicalsBookNoAns.pdf ) (PDF)
* [R for spatial analysis ](http://www.columbia.edu/~cjd11/charles_dimaggio/DIRE/resources/spatialEpiBook.pdf ) (PDF)
* [Learning Statistics with R ](http://health.adelaide.edu.au/psychology/ccs/teaching/lsr/ )
* [R language for Programmers ](http://www.johndcook.com/R_language_for_programmers.html )
* [R Programming ](http://en.wikibooks.org/wiki/R_Programming )
* [Practical Regression and Anova using R ](http://cran.r-project.org/doc/contrib/Faraway-PRA.pdf ) (PDF)
* [Data Mining with R ](http://www.dcc.fc.up.pt/~ltorgo/DataMiningWithR/book.html )
###Racket
* [Programming Languages: Application and Interpretation ](http://cs.brown.edu/courses/cs173/2012/book/index.html )
* [The Racket Guide ](http://docs.racket-lang.org/guide/index.html )
###Ruby
* [The Bastards Book of Ruby ](http://ruby.bastardsbook.com/ )
* [Learn Ruby the hard way ](http://ruby.learncodethehardway.org/book/ )
* [MacRuby: The Definitive Guide ](http://macruby.labs.oreilly.com/ )
* [Mr. Neighborly's Humble Little Ruby Book ](http://www.humblelittlerubybook.com/ )
* [Programming Ruby ](http://www.ruby-doc.org/docs/ProgrammingRuby/ )
* [Why's (Poignant) Guide to Ruby ](http://mislav.uniqpath.com/poignant-guide/ ) ([mirror](http://www.scribd.com/doc/2236084/Whys-Poignant-Guide-to-Ruby))
* [Ruby Hacking Guide ](http://ruby-hacking-guide.github.io/ )
* [Ruby Best Practices ](http://majesticseacreature.com/rbp-book/pdfs/rbp_1-0.pdf ) (PDF)
* [RubyMonk - Interactive Ruby tutorials ](http://rubymonk.com )
* [A community-driven Ruby style guide ](https://github.com/bbatsov/ruby-style-guide )
* [CodeCademy Ruby ](http://www.codecademy.com/tracks/ruby )
* [How To Think Like a Computer Scientist: Learning With Ruby ](http://mysite.verizon.net/hpassel/thinkruby/ )
* [Ruby in Twenty Minutes ](https://www.ruby-lang.org/en/documentation/quickstart/ )
* [Ruby Essentials ](http://www.techotopia.com/index.php/Ruby_Essentials )
* [Ruby User's Guide ](http://www.linuxtopia.org/online_books/programming_books/ruby_guide/ )
* [Ruby Programming ](http://www.linuxtopia.org/online_books/programming_books/ruby_tutorial/ )
* [Ruby Learning ](http://rubylearning.com/ )
* [Try Ruby ](http://tryruby.org/ )
* [Ruby Koans ](http://www.rubykoans.com/ )
* [Ruby User's Guide ](http://www.rubyist.net/~slagell/ruby/ )
* [The Little Book Of Ruby ](http://www.sapphiresteel.com/The-Little-Book-Of-Ruby )
* [Mr. Neighborly's Humble Little Ruby Book ](http://humblelittlerubybook.com/book/ )
* [Learn to Program, by Chris Pine ](http://pine.fm/LearnToProgram/ )
###Ruby on Rails
* [Ruby on Rails Tutorial: Learn Rails By Example ](http://ruby.railstutorial.org/ruby-on-rails-tutorial-book )
* [Objects on Rails ](http://objectsonrails.com )
* [Ruby on Rails Guides ](http://guides.rubyonrails.org )
* [A community-driven Rails style guide ](https://github.com/bbatsov/rails-style-guide )
* [Upgrading to Rails 4 ](https://github.com/alindeman/upgradingtorails4 )
###Rust
* [Rust for Rubyists ](http://www.rustforrubyists.com/book/index.html )
###Sage
* [The Sage Manuals ](http://sagemath.org/doc/ )
* [Sage for Newbies ](http://sage.math.washington.edu/home/tkosan/newbies_book/ )
* [Sage for Power Users ](http://modular.math.washington.edu/books/sagebook/sagebook.pdf ) (PDF)
###Scala
* [Another tour of Scala ](http://naildrivin5.com/scalatour )
* [Effective Scala ](http://twitter.github.com/effectivescala/ )
* [Exploring Lift ](http://exploring.liftweb.net/ ) (published earlier as "The Definitive Guide to Lift", [PDF ](http://groups.google.com/group/the-lift-book ))
* [Lift ](http://github.com/tjweir/liftbook )
* [Pro Scala: Monadic Design Patterns for the Web ](http://github.com/leithaus/XTrace/tree/monadic/src/main/book/content/ )
* [Programming in Scala, First Edition ](http://www.artima.com/pins1ed/ )
* [Programming Scala ](http://programming-scala.labs.oreilly.com/index.html )
* [Scala By Example ](http://www.scala-lang.org/docu/files/ScalaByExample.pdf ) (PDF)
* [Scala School by Twitter ](http://twitter.github.io/scala_school/ )
* [A Scala Tutorial for Java programmers ](http://www.scala-lang.org/docu/files/ScalaTutorial.pdf ) (PDF)
* [Xtrace ](http://github.com/leithaus/XTrace/tree/monadic/src/main/book/content/ )
###Scheme
* [Concrete Abstractions: An Introduction to Computer Science Using Scheme ](https://gustavus.edu/+max/concrete-abstractions.html )
* The Scheme Programming Language [Edition 3 ](http://www.scheme.com/tspl3/ ), [Edition 4 ](http://www.scheme.com/tspl4/ )
* [Simply Scheme: Introducing Computer Science ](http://www.cs.berkeley.edu/~bh/ss-toc2.html )
* [Teach Yourself Scheme in Fixnum Days ](http://www.ccs.neu.edu/home/dorai/t-y-scheme/t-y-scheme.html )
###Scilab
* [Introduction to Scilab ](http://forge.scilab.org/index.php/p/docintrotoscilab/downloads/ )
* [Programming in Scilab ](http://forge.scilab.org/index.php/p/docprogscilab/downloads/ )
* [Writing Scilab Extensions ](http://forge.scilab.org/index.php/p/docsciextensions/downloads/ )
###Scratch
* [Computer Science Concepts in Scratch ](http://stwww.weizmann.ac.il/g-cs/scratch/scratch_en.html )
###Security
* [OWASP Top 10 for .NET Developers ](http://www.troyhunt.com/2011/12/free-ebook-owasp-top-10-for-net.html )
* [Intrusion Detection Systems with Snort ](http://ptgmedia.pearsoncmg.com/images/0131407333/downloads/0131407333.pdf )
###Sed
* [Sed - An Introduction and Tutorial ](http://www.grymoire.com/Unix/Sed.html )
###Silverlight
* [10 Laps around Silverlight 5 ](http://www.silverlightshow.net/ebooks/10laps_silverlight5.aspx )
###Smalltalk
* [Computer Programming using GNU Smalltalk ](http://www.canol.info/books/computer_programming_using_gnu_smalltalk ) (PDF)
* [Dynamic Web Development with Seaside ](http://book.seaside.st/book/table-of-contents )
* [Free Online Smalltalk Books ](http://stephane.ducasse.free.fr/FreeBooks.html ) (meta-list)
* [Pharo by Example ](http://pharobyexample.org/ ) (Smalltalk DE)
* [Squeak By Example ](http://www.squeakbyexample.org/ ) (Smalltalk IDE)
###Subversion
* [Subversion Version Control ](http://www.phptr.com/content/images/0131855182/downloads/Nagel_book.pdf ) (PDF)
* [Version Control with Subversion ](http://svnbook.red-bean.com/ )
###SQL (implementation agnostic)
* [Developing Time-Oriented Database Applications in SQL ](http://www.cs.arizona.edu/people/rts/publications.html )
* [Use The Index, Luke!: A Guide To SQL Database Performance ](http://use-the-index-luke.com/ )
* [Learn SQL The Hard Way ](http://sql.learncodethehardway.org/ )
* [SQL For Web Nerds ](http://philip.greenspun.com/sql/ )
###SQL Server
* [Introducing Microsoft SQL Server 2008 R2 ](http://social.technet.microsoft.com/wiki/contents/articles/11608.e-book-gallery-for-microsoft-technologies.aspx#IntroducingMicrosoftSQLServer2008R2 )
* [Introducing Microsoft SQL Server 2012 ](http://social.technet.microsoft.com/wiki/contents/articles/11608.e-book-gallery-for-microsoft-technologies.aspx#IntroducingMicrosoftSQLServer2012 )
* [SQL Server 2012 Tutorials: Reporting Services ](http://social.technet.microsoft.com/wiki/contents/articles/11608.e-book-gallery-for-microsoft-technologies.aspx#SQLServer2012Tutorials:ReportingServices )
* [SQL Server Execution Plans ](http://download.red-gate.com/ebooks/SQL/sql-server-execution-plans.pdf ) (PDF) *(RedGate, By Grant Fritchey)*
* [Defensive Database Programming ](http://download.red-gate.com/ebooks/SQL/defensive-database-programming.pdf ) (PDF) *(RedGate, By Alex Kuznetsov)*
* [SQL Server Execution Plans, Second Edition ](http://download.red-gate.com/ebooks/SQL/eBOOK_SQLServerExecutionPlans_2Ed_G_Fritchey.pdf ) (PDF) *(RedGate, By Grant Fritchey)*
* [Inside the SQL Server Query Optimizer ](http://www.red-gate.com/products/sql-development/sql-prompt/entrypage/sql-query-optimizer-ebook3 ) *(RedGate, By Benjamin Nevarez)*
* [SQL Server Transaction Log Management ](http://www.red-gate.com/community/books/sql-server-transaction-log-management ) *(RedGate, By Tony Davis and Gail Shaw)*
* [The Art of SQL Server FILESTREAM ](http://www.red-gate.com/community/books/art-of-filestream.htm ) *(RedGate, By Jacob Sebastian and Sven Aelterman)*
* [SQL Server Concurrency: Locking, Blocking and Row Versioning ](http://www.red-gate.com/community/books/sql-server-concurrency.htm ) *(RedGate, By Kalen Delaney)*
* [SQL Server Backup and Restore ](http://www.red-gate.com/community/books/sql-server-backup-and-restore.htm ) *(RedGate, By Shawn McGehee)*
* [Troubleshooting SQL Server: A Guide for the Accidental DBA ](http://www.red-gate.com/community/books/accidental-dba ) *(RedGate, By Jonathan Kehayias and Ted Krueger)*
* [SQL Server Hardware ](http://www.red-gate.com/community/books/sql-server-hardware ) *(RedGate, By Glenn Berry)*
* [SQL Server Statistics ](http://www.red-gate.com/community/books/sql-server-statistics.htm ) *(RedGate, By Holger Schmeling)*
* [Performance Tuning with SQL Server Dynamic Management Views ](http://www.red-gate.com/community/books/dynamic-management-views.htm ) *(RedGate, By Tim Ford and Louis Davidson)*
* [Brad's Sure Guide to SQL Server Maintenance Plans ](http://www.red-gate.com/community/books/sql-server-maintenance-plans ) *(RedGate, By Brad McGehee)*
* [Best of SQLServerCentral.com Vol 7 ](http://www.red-gate.com/community/books/ssc-7.htm ) *(RedGate, By SQLServerCentral Authors)*
* [Protecting SQL Server Data ](http://www.red-gate.com/community/books/protecting-data.htm ) *(RedGate, By John Magnabosco)*
* [SQL Server Tacklebox ](http://www.red-gate.com/community/books/sql-server-tacklebox ) *(RedGate, By Rodney Landrum)*
* [How to Become an Exceptional DBA ](http://www.red-gate.com/community/books/exceptional-dba-book ) *(RedGate, By Brad McGehee)*
* [SQL Server Stumpers Vol.5 ](http://www.red-gate.com/community/books/sql-server-stumpers-v5.htm ) *(RedGate, By SQLServerCentral Authors)*
* [Mastering SQL Server Profiler ](http://www.red-gate.com/community/books/mastering-sql-server-profiler.htm ) *(RedGate, By Brad McGehee)*
###Teradata
* [Teradata Books ](http://www.info.teradata.com/ )
###TeX
* [TeX for the Impatient ](https://www.gnu.org/software/teximpatient/ ), by Paul Abrahams, Kathryn Hargreaves, and Karl Berry
* [Notes On Programming in TeX ](http://pgfplots.sourceforge.net/TeX-programming-notes.pdf ) (PDF) by Christian Feursänger
* [TeX by Topic, A TeXnician's Reference ](http://eijkhout.net/texbytopic/texbytopic.html ), by Victor Eijkhout
* [The Computer Science of TeX and LaTeX ](http://eijkhout.net/texsci/ ), by Victor Eijkhout
See also [LaTeX ](#latex )
###Theory
* [Networks, Crowds, and Markets: Reasoning About a Highly Connected World ](http://www.cs.cornell.edu/home/kleinber/networks-book/ )
* [Homotopy Type Theory: Univalent Foundations of Mathematics ](http://homotopytypetheory.org/book/ ) (PDF)
###TypeScript
* [TypeScript Succinctly, Syncfusion ](http://www.syncfusion.com/resources/techportal/ebooks/typescript ) (PDF, Kindle) *(Just fill the fields with any values)*
###Unix
* [A User's Guide for GNU AWK ](http://www.math.utah.edu/docs/info/gawk_toc.html )
###Vim
* [A Byte of Vim ](http://www.swaroopch.com/notes/Vim )
* [Vim Recipes ](http://ebooksgo.org/computer/vim-recipes.pdf ) (PDF)
* [Vi Improved -- Vim ](http://www.truth.sk/vim/vimbook-OPL.pdf ) (PDF) by Steve Oualline
* [Learn Vimscript the Hard Way ](http://learnvimscriptthehardway.stevelosh.com/ )
* [Learn Vim Progressively ](http://yannesposito.com/Scratch/en/blog/Learn-Vim-Progressively/ )
###Websphere
* [Getting started with WebSphere ](http://public.dhe.ibm.com/software/dw/db2/express-c/wiki/Getting_Started_with_WASCE_p2.pdf ) (PDF)
###Windows Phone
* [Programming Windows Phone 7 ](http://blogs.msdn.com/b/microsoft_press/archive/2010/10/28/free-ebook-programming-windows-phone-7-by-charles-petzold.aspx )
* [Windows Phone Programming Blue Book ](http://www.robmiles.com/c-yellow-book/ )
* [Developing An Advanced Windows Phone 7.5 App That Connects To The Cloud ](http://coolthingoftheday.blogspot.co.uk/2012/05/free-ebook-guidance-advanced-windows.html )
###Windows 8
* [Programming Windows 8 Apps with HTML, CSS, and JavaScript ](http://blogs.msdn.com/b/microsoft_press/archive/2012/06/04/free-ebook-programming-windows-8-apps-with-html-css-and-javascript-first-preview.aspx )