Comment by pooriaazimi

The online version[1] was submitted 10 days ago[2] (by someone else) but it didn't get any attention. So I submitted a link to the epub version. It seems like a very good tutorial and I hope someone finds it useful.

[1]: http://addyosmani.github.com/backbone-fundamentals

[2]: http://news.ycombinator.com/item?id=3784854