Such a profoundly sad book, but excellent. Amazing ending. Audiobook was perfectly narrated by Noah Galvin, and I hope to find more books that he's done. Matthew Quick is rapidly becoming one of my favorite authors; I've read or listened to almost all of his books. 
 Leonard walks a fine line between mental illness and normal teenage troubles. His best friend is his elderly neighbor, but there are a couple kids his age who tolerate him. Otherwise he's friendless, practically parentless, and no one remembers his 18th birthday. 
 Phenomenal. Was going to give this 4 stars because I wasn't wholly satisfied by the ending, but after a little reflection, I think it's perfect. 5 stars.