The volume is divided into sections covering definition and consequences of substance abuse, theories of addiction, and treatment techniques. In each section questions are presented that are then answered in 1–4 pages. The questions are often odd, for example, "Do porcupines drink?" (the answer refers to the social behavior of alcoholics), "What does Aristotle teach us about addiction and its treatment?" (that humans have an innate drive for knowledge and thus educational programs for alcoholics are of value), "What does the horse have to do with substance abuse treatment?" (which refers to a horse in a Chekhov play that Levin uses to explain the benefits of active listening by therapists). The question format, as used in this text, is a distraction from an otherwise lucidly written, well-organized book.