Mark D Lerner

Dr. Mark D. Lerner is a Clinical Psychologist, Author, Speaker and Traumatic Stress Consultant who focuses on helping people during times of crisis. He maintains a clinical practice on Long Island, New York and regularly consults with individuals and organizations around the world. He is the originator of the Acute Traumatic Stress Management intervention model and has authored several books based on this model (www.ATSM.org, www.SchoolCrisisResponse.com and www.UniversityCrisisResponse.com). Dr. Lerner frequently works with the legal community, serving as an expert witness in cases involving traumatic stress, and with groups and organizations in the development of organizational-based crisis management teams. The United Nations has appointed him as an Expert Consultant with the United Nations Department of Safety and Security. Dr. Lerner is presently engaged in developing his book, audio book and presentation series, It's OK Not To Be OK