Ebook: Drupal 6 Performance Tips

I bought this book the day it came out, since I work on Drupal performance problems for a living. Unfortunately, the book is often off topic (upgrades, etc), doesn't really address any of the serious issues well, and doesn't seem to be focused on any particular audience.

Unfortunately, I'd call it a flop. It's definitely a "dissapointing" rating: not worth the money, and not worth buying.

I hope the next effort is better.