I am having trouble fathoming how someone could write so many words while telling so little of value. The book is largely pointless. Here’s an example. Do you want to theme your shopping cart? This book tells you how to make elementary changes to a Drupal site, in a very generic fashion. But doesn’t say a word about theming Ubercart, which the book is about.So it’s not useful. Get a basic Drupal book, or just read the online docs. They will be more helpful.