Joel D. Block, Ph.D., is an award-winning psychologist, practicing couple and sex therapy on Long Island, New York and offering couple-relationship seminars throughout the United States. A Diplomate of the American Board of Professional Psychology, Dr. Block is a senior psychologist on the staff of the North Shore-Long Island Jewish Medical Center and an Assistant Clinical Professor at the Einstein College of Medicine. For twenty years he was the supervisor of the Sexuality Center at Long Island-Jewish Medical Center.