Great to hear you're enjoying the book.

I wish I could say I would have had the discipline to contribute my efforts solely to the handbook, but the truth is I probably would've given up. Having the support of Apress behind our efforts ended in a professional publication that would've otherwise not seen the light of day. They imposed deadlines, hired editors that made me look like an actual writer. And their marketing power to expose Drupal to the corners of the world not reachable through the handbook is amazing. Either way it was a labor of love and we're grateful to the whole community for their continued efforts.