Otto Kernberg, M.D., is Director of the Personality Disorders Institute, Professor of Psychiatry, and DeWitt Wallace Senior Scholar at the Weill Cornell Medical College, New York, New York, and Training and Supervising Analyst, Columbia University Center for Psychoanalytic Training and Research. Dr. Kernberg formerly served as Director of the C.F. Menninger Memorial Hospital, Supervising and Training Analyst of the Topeka Institute for Psychoanalysis, and Director of the Psychotherapy Research Project of the Menninger Foundation. The recipient of many awards for excellence in psychiatry and author of numerous books in the field, he is also Past President of the International Psychoanalytical Association.