I present to you a small selection of free books on programming, I think they may be useful to many.
Alexander Kruglov - Ruby - This book can be used as a reference book and as a separate tutorial on Ruby. For learners of Rails, I consider an exhaustive language guide. The language version in this book is 2.0.0p247.
Author's words:
Do not think that after reading this book you will immediately begin to write high-loaded applications. The most you have learned is programming small scripts that can make your daily work a little easier. A lot of necessary knowledge about code style, testing and debugging, architecture and optimization (etc.) separates you from the proud title of programmer. I can only hope that the pleasure of working with Ruby will help to overcome all these obstacles and the community will get another like-minded person. Github repository')
RSpec. Better Specs - An interesting reference with good examples of the RSpec testing tool.
Parallel Technologies - Pdf versions of interesting articles from Linux Format magazine. Everything is written in simple and understandable language. Author: Baldin Evgeny. To raise the level and general technical literacy must read! Posted on the site by the author of these articles with the consent of the journal.
Just about Vim - Translation of a book on Vim (version 7) from Swaroop C H. For those who want to explore this multifunctional editor - an excellent choice.
Smalltalk. Language and its implementation - Translation of the book by Adel Goldberg and David Robson Smalltalk: The Language and its Implementation. (83rd year)
Introduction to reverse engineering for beginners - The book on reverse engineering from the Russian author Denis Yurichev. Free access to his site.
Data Analysis with R - A series of articles on the R language from the Linux Format journal. Author: Evgeny Baldin
Little book about Redis - Carl Seguin's The Little Radis Book.
GithubThe Little Book of MongoDB - Carl Seguin's The Little MongoDB Book Translation. Author's words:
It's not my fault that the book is so short, just MongoDB is easy to learn.This and the previous book on NoSQL seemed to me very interesting, I think they are worth what you can read, especially since they are not large (: It is strange that I did not meet the mention of this book on Habré.
Advanced Bash-Scripting Guide - Book translation by Mendel Cooper on Bash scripting.
Scrum and XP: Front-End
Notes - Book Translation by Henrik Kniberg From the Trenches.
Github - The list of books in Russian, is regularly updated, I brought only the most interesting books from it, the references of which I did not find on Habré.