About the Author

Ellert R. S. Nijenhuis, Ph. D., is a psychologist, psychotherapist and researcher. He has diagnosed and treated severely traumatized patients for more than 30 years. He teaches and publishes on trauma-related dissociation and dissociative disorders. He is a research advisor at the Littenheid Clinic (Switzerland) and works with several European universities. The International Society for the Study of Trauma and Dissociation has awarded him several awards, including for his life's work.