The alarming spike in autism in recent years has sent doctors and parents on a search for answers. While many controversies have erupted, none have brought researchers any closer to a definitive explanation. The Autism Puzzle is the first book to address the compelling evidence that it is the pairing of environmental exposures with genetic susceptibilities that may be driving these rising rates. Belli examines the lives of three families with autistic children, putting a human face on the families caught between the debates and offers a refreshingly balanced perspective.