Epidemiologist Ernest Drucker compares mass incarceration to other, well-recognized epidemics using basic public health concepts, making a strong case that imprisonment has become a destabilizing force that undermines the families and communities it targets, damaging the very social structures that prevent crime. Despite his unique angle, Drucker doesn't necessarily reveal anything new or enlightening about the problems with our prison system; for that reason, I wouldn't recommend the book to friends with an established interest in prison reform. And although the book's easy to digest, Drucker doesn't offer the strong solutions that an epidemic of any kind begs for, which means I wouldn't recommend the book to a "criminology beginner," either.
Drucker's passion for epidemiology vividly comes through his chapters on the AIDS epidemic, which he uses to introduce laymen to the basic public health concepts he later uses to describe the effects of incarceration. (Think "prevalence and incidence," "outbreaks," "contagion," "transmission," etc.) Perhaps because of Drucker's own contagious enthusiasm, I enjoyed these chapters most, more of a primer to epidemiology than anything else.