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

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

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