Believe me, I HAVE read the book; I just don't have the time at the moment to write a detailed review. I'll attempt to do so at a later date.
In my work as a security officer I've worked around the Vancouver Downtown Eastside, with it's attendant social problems: homelessness or grossly inadequate housing, drug addiction, trafficing and human misery.
In part, I read this book in an attempt to understand the environment and circumstances of the people I encountered in my security function; mostly "removal of trespassers from private property".
From reading the book I feel I've acquired a much better understanding of the nature of addiction and the personal and social circumstances that tend to give rise to the condition.
The book deals with the subject in considerable depth, and while written for the lay person, this level of detail is not easily absorbed. It may require more than one, or several readings of certain parts and some reference to source materials to properly "digest" the information.
In order not to deter the potential reader, I should point out that the text is highly readable, in large part due to his very compassionate portrayal of the lives of some of his patients, and his frank admission of his own addictive behaviours, along with his ideas about their causes.