The Curious Incident of the Dog in the Night-Time, Mark Haddon.

Another of the books chosen by the Saint John's Book Club, this is the story of Christopher, a self-described math expert, with behavioral problems. Although it is not stated, he is autistic, probably with aspergers. It is a fascinating glimpse into the mind of this 15 year old boy, living in England, his father with whom he lives, and his mother whom he travels to London to find.

I liked it a lot, even though most of the mathematics was way over my head.