«In addition to a deep understanding of autism, a clinician must also have the skill and expertise to recognize a myriad of other possibilities to diagnose accurately. Is it autism, autism plus another disorder, or another disorder alone? This book clearly explains every major diagnostic differential and provides very practical guidance. It fills a critical gap for new and experienced clinicians and will become a necessary read for anyone in this field.»

Stephen M. Kanne, Ph.D., ABPP (CN)