Autism and the God Connection by William Stillman. Mr. Stillman has been diagnosed with Asperger's Syndrome and is the founder of the Pennsylvania Autism Self-Advocacy Coalition. 

Autism, Brain, and Environment by Richard Lathe. This book is more on the scientific understanding of autism.          

Acting: for Kids on the Autistic Spectrum by Alisa Wolf. 

Adolescents on the Autism Spectrum by Chantal Sicile-Kira.

Autism Spectrum Disorders by Chantal Sicile-Kira.

The Autism Source Book.Could it be Autism? by Nancy Wiseman