This book has been built by dozens of people in the Git community, and is meant to help you learn how to use Git as quickly and easily as possible.
Sigil is a multi-platform WYSIWYG ebook editor. It is designed to edit books in ePub format.
Written by two Debian developers — Raphaël Hertzog and Roland Mas — the Debian Administrator's Handbook started as a translation of their French best-seller known as Cahier de l'admin Debian (published by Eyrolles). It's a fantastic resource for all users