Arnoud Arntz, PhD, is Professor of Clinical Psychology at the University of Amsterdam, the Netherlands. His research and clinical activities are directed at personality disorders and trauma-related mental health problems. He is well-known for his test of Schema Therapy as a treatment for Borderline and other Personality Disorders, and for his contributions to the development of the theory and the application of Schema Therapy.

Hannie van Genderen, MSc, is psychotherapist/clinical psychologist and supervisor and trainer in Schema Therapy. She was involved with the introduction of Schema Therapy for personality disorders in the Netherlands from the very beginning in 1996. She was involved with the foundation of the International Society of Schema Therapy and was member of the board as coordinator for Training and Certification from 2010-2012. From 2012-2016 she was chair of the Dutch Schema Therapy Association. Since 1990 she was involved as a senior consultant and clinical psychologist in the treatment and research of personality disorders in general and borderline personality disorder (BPS) in particular. In 2000 she became director of a Schema Therapy Institute, where so far about 4000 schema therapists were trained.