Free Books

A curated list of free books about Linux and Open-Source.

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Please find below our ever-expanding list of free books. Hopefully, you'll find something of your interest. For suggestions, please reach out on Twitter.

Computing / General

• How to make an Operating System
• Beej's Quick Guide to GDB

FOSS / Philosophy

• Free as in Freedom - Richard Stallman's Crusade for Free Software
• The Cathedral and the Bazaar
• Open Sources: Voices from the Open Source Revolution
• Producing Open Source Software - How to Run a Successful Free Software Project

Linux

• Introduction to Linux
• Advanced Bash-Scripting Guide
• Bash Book
• Bash Guide for Beginners (pdf)
• Learning Debian GNU/Linux (from 1999 but very comprehensive)
• Linux® commands Notes for Professionals
• Fedora Linux
• The Linux Command Line
• Ubuntu Server Guide 
• Ubuntu Desktop Guide
• GTK4

Programming

• Foundations of Computer Science
• Learn to Program
• Managing Projects with GNU Make
• Obey the Testing Goat! - TDD for the Web, with Python, Selenium, Django, JavaScript and pals...
• PowerShell® Notes for Professionals
• Structure and Interpretation of Computer Programs

C

• C Programming Notes for Professionals
• C Programming (WikiBooks)
• Essential C
• Modern C
• Beej's Guide to C Programming

C++

• Practical C++ Programming
• C++ Notes for Professionals
• Essential C++
• Hands-On System Programming with C++
• Optimizing C++ - the WWW version
• Practical Guide to Bare Metal C++
• Programming Embedded Systems in C and C++

C#

• C# Notes for Professionals
• C Sharp Essentials
• Data Structures and Algorithms with Object-Oriented Design Patterns in C#
• Fundamentals of Computer Programming with C#

Haskell

• Learn You a Haskell for Great Good!

iOS

• iOS Succinctly
• Programming for iOS

Java

• Java Programming
• Java Programming for Kids
• Introduction to Programming Using Java, Eighth Edition
• Think Java: How to Think Like a Computer Scientist
• What's new in Java 8

JavaScript

• Deep JavaScript
• Exploring ES6
• JavaScript the Good Parts
• JavaScript for impatient programmers
• Learn JavaScript
• Learning JavaScript
• Learning JavaScript Design Patterns
• Practical Modern JavaScript

Julia

• Julia - Wikimedia
• Think Julia: How to Think Like a Computer Scientist

Flutter

• Flutter Cookbook
• Flutter Succinctly
• Flutter Tutorials Handbook

Go

• An introduction to programming in Go
• Build Web Application with Golang
• Building Web Apps with Go
• Effective Go
• Essential Go
• Go for JavaScript developers
• Go Bootcamp - Everything you need to know to get started with Go
• Go 101
• Go by Example

Perl

• Impatient Perl

PHP

• Clean Code PHP
• Essential PHP
• Functional PHP
• Hacking with PHP
• PHP Best Practices
• PHP Book
• PHP Essentials
• PHP Internals Book
• PHP Programming
• PHP 7 from scratch
• PHP Notes for Professionals
• PHP The Right Way

Python

• A Byte of Python
• Automate the Boring Stuff with Python
• Learn Python Programming - Second Edition
• Learn Python, Break Python
• Learn Python the hard way
• Non-Programmer's Tutorial for Python 3
• Invent Your Own Computer Games with Python
• Inside The Python Virtual Machine
• Python® Notes for Professionals
• The Coder's Apprentice - Learning Programming with Python 3
• Think Python 2nd Edition
• Think Python: How to Think Like a Computer Scientist

R

• Cookbook for R
• Efficient R programming
• Hands-on programming with R
• R Packages

Ruby

• Developing Games with Ruby
• I Love Ruby
• Learn Ruby First
• Learn Ruby the hard way
• Ruby web dev: the other way
• Ruby on Rails 4th Ed

Rust

• The Rust Programming Language
• The Rust Programming Language Reference
• Rust design patterns
• Rust by Example

Scala

• Scala School
• Scala tutorial for Java programmers

Swift

• Essential Swift
• Learn Swift
• Swift: A Quick Reference Guide

TypeScript

• TypeScript deep dive

Networking

• Linux Network Administrator's Guide, 2nd Edition
• Beej's Guide to Network Programming
• Using Samba (old but very good!)

Linux Internals

• Beej's Guide to Unix Interprocess Communication
• Linux Device Drivers, Third Edition
• The Wayland Book

Text Editors

• VIM User Manual
• The Woodnotes Guide to Vim for Writers
• A Byte of Vim (pdf)
• Use Vim Like A Pro
• GNU Emacs manual

Tools

• Gawk: Effective AWK Programming

Kubernetes, Docker & Cloud

• Docker Cookbook - Second Edition
• Mastering Kubernetes - Second Edition
• Kubernetes Cookbook - Second Edition
• Serverless Design Patterns and Best Practices

Web Development

• Dive Into HTML5
• Learn to Code HTML & CSS
• Learn to Code Advanced  HTML & CSS
• Full-Stack React Projects
• Practical Modern JavaScript
• Vue.js 2 Design Patterns and Best Practices

Database

• Database design with UML and SQL, 4th edition
• Practical PostgreSQL
• SQL Server 2017 Administrator's Guide

IoT

• Mastering Internet of Things

Data Science, Machine Learning & AI

• Introduction to Data Science
• R for Data Science
• R Notes for Professionals
• Hands-On Programming with R

Would you have any book to recommend? Please share it with us on Twitter or by using the contact page. Thanks!