Packt has now set up the official information page for my Drupal book.
This book has a very hands-on practical feeling to it. Each chapter walks through the creation of a module, theme, or installation profile. The goal is to produce modules that actually do something.
One chapter covers theming, and one chapter covers building a custom installation profile (that is, an installer for a highly customized version of Drupal).
I'm actually done writing the book (ahead of schedule, I might add). Now, it will go through reviewing and printing before hitting the shelves. My editor tells me that it will probably ship in June. But apparently they are optimistic -- they but the book up for pre-order already.
This has been by far the most fun book I've written, and I think I will stick to this sort of format for future books (at least the development ones).
And if you are coming to DrupalCon Boston, look me up.