Jacques P. BarberJacques P. Barber is Professor of Psychology, Center for Psychotherapy Research, Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA. He is President of the Society for Psychotherapy Research. He co-authored the Handbook of Bref Dynamic Therapies; Handbook of Dynamic Psychotherapy Research and Practice: A How-to-Do-Them Guide; and Dynamic Therapies for Psychiatric Disorders (Axis 1). Read More Read Less