This book lacks substance. The author covers a lot of set up tasks which can be picked up easily on your own or reading David Mercer's book on Drupal websites. There is very little programming if that's what you are looking for. I think the some of the content in this book is better if its combined with the Mercer's book, but really you can pick up most of these things on your own by trolling the internet for google answers. One of the things I did notice about this book was that though it tries to focus on E-Learning, it doesnt really build up any substance with how Drupal can be made to match up with commercial E-Learning platforms like Samba etc. It also does not cover much of Moodle integration with Drupal and how which seemed odd to me.