Richard L. Simpson is Professor of Special Education at the University of Kansas. He has also served as director of special education programs at the University of Kansas Medical Center and chair of the Special Education Department at the University of Kansas. He has worked as a special education teacher, school psychologist, and clinical psychologist. He has also served as senior editor of the professional journal Focus on Autism and Other Developmental Disabilities. The author of numerous books and articles on autism spectrum disorders, Dr. Simpson was the 2002 recipient of the International Council for Exceptional Children Research Award and the Midwest Symposium for Leadership in Behavior Disorders Outstanding Professional Leadership Award. Copyright AAPC Publishing.