Experts estimate that nearly a third of the population will self-injure at some point in their lives-with teenage girls having the highest risk. Self-injury disorder is just one of the topics explored in the Understanding Mental Disorders series. All titles in the series examine what the disorder is, what causes it, what it is like to live with it, and how or whether it can be treated or cured. Fully documented quotes, full-color photographs and charts, and organizations to contact lists add to the value of these books for use in student research. Book jacket.