Earl Hopper, Ph.D., is a psychoanalyst, group analyst and organizational consultant in private practice. He is a supervisor and training analyst for the Institute of Group Analysis, the British Association of Psychotherapists and the London Centre for Psychotherapy. An honorary tutor at The Tavistock and Portman NHS Trust and a member of the Post-Doctoral Program at Adelphi University, New York, he is the author of many books and articles, and an internationally renowned lecturer and teacher. Earl Hopper is also a past President of the International Association of Group Psychotherapy and a past Chairman of the Group of Independent Psychoanalysts of the British Psycho-Analytical Society.