In a new post Matt Curry talks about a CakePHP book that he's written up and is free for the taking (and using and learning). The book takes a bit more advanced approach to using the framework and for those who have "mastered the basics and wants to do more".
At the moment there is no lack of CakePHP books geared towards beginners. But, there really isn't much for anyone who has mastered the basics and wants to do more. This e-book is for you guys and gal (I'm sure there's at least one out there somewhere).
He answers a few questions about the book including his motivations behind it, why it's free and what's with the "Mark Story" stuff.
You can download your very own copy here: Super Awesome Advanced CakePHP Tips.