definitely worth to buy for backbone devs!,
Rezension bezieht sich auf: Backbone.js Patterns and Best Practices (Taschenbuch)
The author writes that this book requires some basic knowledge of Backbone.js - well, i would say that he is correct.
You do need to understand the basic concepts, but i'd definitely suggest it to anyone who is working with Backbone and you don't need to be very experienced.
The book is not just about Patterns and Best Practices, the first half of it is more like a reference for Models, Views and Controllers. Which is good, because you don't need an extra book for that and it helped me a lot as Backbone beginner.
Skip the first half of the book if you feel like a pro in Backbone, but don't miss the second half because that's where you get a deep knowledge of how you should structure your apps, including Require.js and AMD modules.
You don't see separate recipe after recipe, which is good because every chapter fits together very well and explains all important aspects of Backbone.
So this is definitely worth to buy if you are interested in working with Backbone.js. Only Chapter 8 about unit testing is a bit too short in my opinion and i would have liked to see some testig with more professional frameworks like Jasmine or Mocha. But that's more of a personal taste.