Thread by @SuhailKakar

💡 Top free programming e-books & resources

📚 Turn your ebook shelf into a repository of valuable knowledge without spending a penny.

A Mega Thread 🧵

HTML and CSS {1/2}
@shayhowe's Learn to Code HTML & CSS is a straightforward guide with different learning curves, making them suitable for people looking to learn the basics, or expand their skill set with some advanced techniques.

learn.shayhowe.com/html-css/

HTML and CSS {2/2}

The @Google HTML/CSS Style Guide is a great place to learn more about best practices. The guide contains a myriad of rules governing HTML and CSS style, formatting, meta, and more.

google.github.io/styleguide/htm…

JavaScript {1/2}

@addyosmani's learning JavaScript Design Patterns is all about streamlining the learning process and making JS patterns easier to understand.

addyosmani.com/resources/esse…

JavaScript {2/2}

The @Google JavaScript Style Guide should also come in handy.

google.github.io/styleguide/jav…

Python {1/1}

@Google offers a complete Python Class, as well as the Python Style Guide.

developers.google.com/edu/python/

Ruby and Ruby on Rails {1/4}

Learn Ruby The Hard Way is a collection of exercises, so it takes a practical approach to learning.

learnrubythehardway.org/book/

Ruby and Ruby on Rails {2/4}
The Ruby Style Guide, hosted on GitHub, documents the style and best practices.

github.com/rubocop/ruby-s…

Ruby and Ruby on Rails {3/4}
Ruby on Rails 4.0 Guide is a comprehensive guide covering most aspects of RoR 4.0.

xyzpub.com/en/ruby-on-rai…

Ruby and Ruby on Rails {4/4}
Learn Ruby on Rails as You Modify a Craigslist Clone is a practical tutorial. It can be used by green developers, as well as those with a background in Rails.

thinkful.com/learn/ruby-on-…

Android {1/2}

If you are looking for free design advice, you should check out Styling Android. This is not a proper book, either, so the content is updated on a regular basis.

Android {2/2}
Google Android Developer Training is the obvious place to start. It offers a lot of useful resources, best practices, and so on.
developer.android.com/training/index…

Git {1/2}
@Stanford's Git Magic is a quality resource, and unlike most books on our list, it is available in a range of languages, including Chinese, French, Italian, Polish, and Russian.
www-cs-students.stanford.edu/~blynn/gitmagi…

Git {2/2}
The GitHub Cheat Sheet is a useful collection of hidden features and power user tips for Git and GitHub.
github.com/tiimgreen/gith…

iOS {1/1}
iOS Succinctly from Syncfusion comes highly recommended, as does iOS 8 App Development Essentials by Techotopia.

syncfusion.com/succinctly-fre…

Java {1/2}
@Google’s Java Style Guide is a must-read for novices and veterans alike.

google.github.io/styleguide/jav…

Java {2/2}
Moving on to another tech giant, Oracle's Java Tutorials is another compilation of useful Java stuff.
docs.oracle.com/javase/tutoria…

PHP {1/2}

Hacking With PHP (formerly Practical PHP Programming) is a frequently updated resource/

hackingwithphp.com

PHP {2/2}
If you’re looking for something that offers everything in one place, the PHP Programming Wikibook could be what you’re after.

en.wikibooks.org/wiki/PHP_Progr…

Perl {1/1}
Impatient Perl by Greg London is a quick reference guide. It’s useful for developers who are just getting started but can also be used as a reference by seasoned developers.
perl.org/books/impatien…

C Sharp {1/1}
The C# Programming Yellow Book is published by the @UniOfHull and, since it’s part of the university’s courses, the book is updated on a regular basis.
csharpcourse.com