- http://cli.learncodethehardway.org/book/ A course about the different tools and concept usable in a terminal. It takes 1 or 2 days to complete.
- https://www.gitbook.io/ (A good solution to epub creation BTW)
- [Livres gratuits sur la programmation] (http://resrc.io/list/33/livres-gratuits-sur-la-programmation/)