Lots of free programming books

[raystubbs]

I found this list of free programming books, thought I should share.
https://github.com/vhf/free-programming-books/blob/master/free-programming-books.md#professional-development

[DavidtheSong]

Here's another great resource if you need to dive into a language in a short amount of time : http://learnxinyminutes.com/