Thanks for writing this book.
Is there any way you can add more content in the CATransform3D section. It jumps from faux 3d to an example that loops through a series of arrays to get the desired effect within a few pages. I see why you have done this, but it is making it difficult to understand the underlying concepts behind CATransform3D. Since there is so little documentation on this subject on apple, it would be nice to have a few simple examples that walk through some of the various CATransform3D transforms and animations.