First published in 1987. Trauma and Its Wake, Volume II: Post-Traumatic Stress Disorder Theory, Research, and Treatment is the eighth book in the Psychosocial Stress Book Series. The purpose of the Series is to develop and publish books that in some way make a significant contribution to the understanding and management of the psychosocial stress reaction paradigm. The books are designed to advance the work of clinicians, researchers, and other professionals involved in the varied aspects of human services. The primary readership of this Series includes those practitioners, scholars, and their students who are committed to this purpose. The origin of this current book can be traced to Volume #4 in the Series, Trauma and Its Wake: The Study and Treatment of Post-Traumatic Stress Disorder, edited by Charles R. Figley. This was the first attempt to generalize research and clinical findings among a wide variety of traumatic or catastrophic events towards a generalized view of traumatic and post-traumatic stress reactions. Chapters focused on the immediate and long-term psychosocial consequences of exposure to one of many types of catastrophic events: war, rape, natural disasters, incest. Other chapters focused on effective methods of treating or preventing stress reactions or disorders. It is the first in a series of books that will review the latest innovations in theory, research, and treatment of post-traumatic stress disorder (PTSD), caused by a wide variety of stressful life events. The book you are reading is the second of this series of annually published volumes on PTSD within the Book Series.