Jeffrey Zimmerman, PhD, is president and cofounder of Beacon Behavioral Services in Avon, CT, and the PEACE Program (Parents Equally Allied to Coparent Effectively), which is a specialized service for high-conflict divorced and divorcing parents. He is a member of the American Psychological Association and a member, past president, and fellow of the Connecticut Psychological Association. He is also a diplomate and founding fellow of the American College of Advanced Practice Psychologists. He is on the clinical faculty of the University of Connecticut Health Center. Zimmerman is also coauthor of The Co-Parenting Survival Guide: Letting Go of Conflict after a Difficult Divorce.