Yvonne M. Agazarian, Ed.D., C.G.P., F.A.G.P.A., is a psychologist in private practice, a Consulting Affiliate to Friends Hospital, and founder of the Systems-Centered Training Institute in Philadelphia, Pennsylvania. A Fellow of the American Group Psychotherapy Association and a board member of the International Association of Group Psychotherapy, Dr. Agazarian is internationally known as the originator of Systems-Centered Therapy. Systems-Centered Therapy for Groups is her second book.