The diagnosis of posttraumatic stress disorder has increasingly been the focus of clinicians' attention when treating patients after stressful life events. Written by three authors with extensive research and clinical experience working with diverse relevant trauma-exposed populations, this book serves the needs of clinicians working with trauma survivors. This timely book shows how to use specific assessment strategies with defined populations including children and veterans. A practical and easy-to-read guide on the clinical assessment and treatment of PTSD and other posttraumatic reactions.