Although at some points disturbing, this books is just fantastic. It's laugh-out-loud funny, brutally honest, and heart-warming all at the same time. The book does contain graphic language and some sexual references and scenes. I'd say a very mature 13 or 14 year-old should be able to handle all of it, and anyone 15 or over should have no problem with the mature nature of this book. This work of art describes six days of the life of a "madman" trying to distance himself from his therapy group to lead a more normal life. This novel is superbly written, and I reccomend that you read it ASAP.