This is an article about the International Society for Traumatic Stress Studies. It discusses what the organization is, the work that it does, and how to get involved. Some important points are that ISTSS is dedicated to sharing information about the effects of trauma and the discovery and dissemination of knowledge about policy, program and service initiatives that seek to reduce traumatic stressors and their immediate and long-term consequences. It is an international interdisciplinary professional organization that promotes advancement and exchange of knowledge about traumatic stress.