I've been reading "JavaScript Web Applications" by Alex MacCaw and it provides a great introduction to MVC and a number of popular client-side frameworks. It also contains a ton of best practice advice for general JavaScript development. Definitely worth checking out.

http://shop.oreilly.com/product/0636920018421.do

The author of Spine wrote this book: http://shop.oreilly.com/product/0636920018421.do

Yes, thanks!, this is fabulous, between the backbone recipes book (http://recipeswithbackbone.com/) and this, and the absolutely fabulous book by Alex McGaw (author of Spine, http://shop.oreilly.com/product/0636920018421.do), my JS app mojo has been steadily improving!

The best I have found for advanced javascript to be is "Secrets of the Javascript Ninja"[1] by John Resig and Bear Bibeault. Highly recommended. Currently I am reading "Javascript web applications"[2] by Alex MacCaw and it seems to be well written and to the point as well.

[1] http://www.manning.com/resig/ [2] http://shop.oreilly.com/product/0636920018421.do