This book is written in a simple, concise style for the layperson--and is packed with need-to-know information on adult psychiatric disorders, including their causes, approaches to treatment, and what caregivers can do to help. The book is promoted as an excellent text for introduction to psychiatry classes in colleges and nursing schools for helping students develop valuable knowledge and skills to apply in practice. This second edition has been extensively revised and updated with new information on diagnostic techniques and brain scans, the role of genetics, new medications and psychotherapeutic approaches, and more. In addition, it features a unique and illuminating look at mental health in our post-9/11 nation, including the rising incidence of posttraumatic stress disorder. (GCP)