Review: „Developing Backbone.js Applications” By Addy Osmani, O’Reilly Media
Book is organized quite well for me. After some introductory and essential material there are two chapters with Todo app and simple application storing books in library. There are chapters devoted to Backbone extensions, common problems and solutions, testing Backbone applications. I found them especially useful for me.
Book covers Backbone really well, but it may be not-so-easy to grasp without previous familiarity. Author presented different aspects (writing/managing/testing) of Backbone application really well.
Product page: http://shop.oreilly.com/product/0636920025344.do