Heidi Gerard Kaduson, PhD, RPT-S, specializes in evaluation and intervention services for children with a variety of behavioral, emotional, and learning problems. She is past president of the Association for Play Therapy and Director of The Play Therapy Training Institute, Inc., in Monroe Township, New Jersey. She has lectured internationally on play therapy, attention-deficit/hyperactivity disorder, and learning disabilities. Dr. Kaduson’s coedited books with Charles E. Schaefer include 101 Favorite Play Therapy Techniques, 101 More Favorite Play Therapy Techniques, and Contemporary Play Therapy. She maintains a private practice in child psychotherapy in Monroe Township, New Jersey.

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Charles E. Schaefer, PhD, RPT-S, until his death in 2020, was Professor Emeritus of Clinical Psychology at Fairleigh Dickinson University. A pioneering play therapist, he was Cofounder and Director Emeritus of the Association for Play Therapy, which recognized him with its Lifetime Achievement Award. Dr. Schaefer published more than 100 research articles and over 70 professional books, including Prescriptive Play Therapy; Play-Based Interventions for Childhood Anxieties, Fears, and Phobias; and Essential Play Therapy Techniques.

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