I know you are looking for a non-fiction book on Asperger’s, but I highly recommend you read for yourself The Curious Incident of the Dog in the Night-Time by Mark Haddon.  It’s a very fast read and gives an unusual insight into the Aspie mind, as the main character is a 15-year-old boy with Asperger’s.  I don’t know how old your son is, but my son is 10 years old and high functioning and throughout the book I could see my son in the main character.  It was getting a unique view into my own son’s brain.  Very cool!

If your son is younger, I recommend a book for him called When My Autism Gets Too Big.  My son reads that book often.  We never filled it in when he first got it so now when we read it together, it’s interesting to see how he answers the questions differently as he grows up.  It’s good for him to understand himself and for me to get a glimpse of what’s going on inside him. 

Good luck!

--Francine