Lee A. Wilkinson, PhD, is a licensed and nationally certified school psychologist, chartered psychologist, and certified cognitive-behavioral therapist. He is an Associate Fellow of the British Psychological Society. Dr. Wilkinson is author of the award-winning books, A Best Practice Guide to Assessment and Intervention for Autism and Asperger Syndrome in Schools and Overcoming Anxiety and Depression on the Autism Spectrum: A Self-Help Guide Using CBT. His latest book is A Best Practice Guide to Assessment and Intervention for Autism Spectrum Disorder in Schools (Second Edition).