Valério Farias (http://www.valeriofarias.com)
Do you have to install the dependencies:
prince, rdiscount, ultraviolet, tilt
First you have to install prince from source: Prince: http://www.princexml.com/download/
Now install the required packages and gems: sudo aptitude install libonig2 libonig-dev sudo gem install rdiscount ultraviolet tilt
To generate the book run:
rake pdf
To delete the last generated book run:
rake clean
This project has initially two versions of the book: English and Portuguese
Now, just read the book and have fun!
Source Code - MIT / Ebook - Creative Commons