Book excerpt: Psychological Effects of Catastrophic Disasters: Group Approaches to Treatment comprehensively discusses the basic information about the psychological effects of traumatic disasters and what can be done to treat them in group settings. Internationally renowned authorities thoroughly explore medical treatment and numerous evidence-based group interventions, providing expert suggestions and revealing examples as illustration. This essential source provides a quick reference for mental health and health professionals prospectively facing the traumatic aftermath of terrorist disasters and other catastrophic events. The royalties from this book shall be donated to organizations which provide direct services to those who continue to be affected by the events of September 11th, 2001 and Hurricane Katrina (August 29th, 2005).