Self-mutilation is a behaviour so shocking that it is almost never discussed. Yet millions of people all over the world are chronic self-injurers. They are people who use knives, razor blades, or broken glass to cut themselves and their numbers include Johnny Depp and the late Princess Diana. In this groundbreaking work - an essential resource for victims, parents and therapists - Strong explores this hidden epidemic through case studies, research from psychologists, trauma experts, and the cutters thenmselves. It is a compelling tour of the trauma and science of self-injury.