God* comes to you and tells you that, from this day forward, you may only read ONE type of book–one genre–period, but you get to choose what it is. Classics, Science-Fiction, Mystery, Romance, Cookbooks, History, Business … you can choose, but you only get ONE.
What genre do you pick, and why?
*Whether you believe in God or not, pretend for the purposes of this discussion that He is real.
Don’t forget to leave a link to your actual response (so people don’t have to go searching for it) in the comments—or if you prefer, leave your answers in the comments themselves!