Donald Meichenbaum, Ph.D. is a founder of Cognitive Behavioral Modification and has been voted one of the 10 most influential psychotherapists of the Century. Dr. Meichenbaum is Distinguished Professor Emeritus at the University of Waterloo, Ontario, Canada, and maintains a private practice as a clinical psychologist. As an expert in the treatment of PTSD, Dr. Meichenbaum has presented throughout North and Central America, Israel, Japan, and the former Soviet Union. As a clinician and researcher, he has treated all age groups for traumas suffered from violence, abuse, accidents, and illness.

Dr. Meichenbaum is the author and co-author of numerous books including: A Clinical Handbook/Practical Therapist Manual for Assessing and Treating Adults with Post Traumatic Stress Disorder, Stress Inoculation Training, Pain and Behavioral Medicine, Facilitating Treatment Adherence and Roadmap to Resilience. His book, Cognitive Behavior Modification: An Integrative Approach, is considered a classic in its field. He also serves as the editor of the Plenum Press Series on Stress and Coping.