I frequently am asked to server as a technical reviewer on development books. Time doesn't permit me to always say yes but I try to make time to agree to do the more interesting titles.
This book is one I said yes to. Adam and Joel have done a great job of exposing this detailed subject.
Controls are such a powerful re-use mechanism and so under covered.
The book is due for release on July 15th and you can save 5% with an Amazon.com preorder.