Handbook on Obsessive-Compulsive and Related Disorders is the first book of its kind to reflect the new DSM-5 classification, which no longer identifies obsessive-compulsive disorder (OCD) as an anxiety disorder, but instead groups it with related conditions, which are now known as obsessive-compulsive and related disorders (OCRDs). This pivotal change recognizes the increasing evidence that these disorders are related to one another and distinct from other anxiety disorders, and is intended to help clinicians better identify and treat individuals with OCRDs. Many of the book's authors participated in the development of DSM-5, and the editors were chair the DSM-5 work group and chair of the sub-work group, respectively, that studied these disorders, ensuring that the text is utterly consistent with the classification and provides cutting-edge coverage, from body dysmorphic to tic disorders.

Key clinical points and case studies contribute to the book's hands-on usefulness, as do the many differential diagnosis tables and other charts. Handbook on Obsessive-Compulsive and Related Disorders is authoritative, but it is also written and structured to be accessible and should appeal to a broad range of readers.

Katharine A. Phillips, M.D., is Professor of Psychiatry and Human Behavior at Alpert Medical School of Brown University; and Senior Research Scientist and Director of the Body Dysmorphic Disorder Program at Rhode Island Hospital in Providence, Rhode Island.

Dan J. Stein, M.D., Ph.D., is Professor and Chair of the Department of Psychiatry at the University of Cape Town in Cape Town, South Africa.