Earl Hopper, PhD, is a Psychoanalyst, Group Analyst and Organizational Consultant in private practice in London. He is a Fellow of the British Psychoanalytical Society, an Honorary Member of the Institute of Group Analysis, an Honorary Member of the Group Analytic Society International, and a Distinguished Fellow of the American Group Psychotherapy Association. The Editor of the New International Library of Group Analysis, he is a renowned teacher, trainer and consultant in the United Kingdom and many other countries.