Heidi Gerard Kaduson, PhD, specializes in evaluation and intervention services for children with a variety of behavioral, emotional, and learning problems. She is past president of the International Association for Play Therapy and codirector of The Play Therapy Training Institute, Inc. She has lectured internationally on play therapy, attention-deficit/hyperactivity disorder, and learning disabilities. Widely published, Dr. Kaduson maintains a private practice in child psychotherapy in Hightstown, New Jersey. Charles E. Schaefer, PhD, a nationally renowned child psychologist, is Professor of Psychology and director of the Center for Psychological Services at Fairleigh Dickinson University in Teaneck, New Jersey. He is director emeritus of the International Association for Play Therapy and has written or edited more than 40 books on parenting, child psychology, and play therapy. Dr. Schaefer maintains a private practice in child psychotherapy in Hackensack, New Jersey.