I've started reading Eats, Shoots & Leaves, a very funny book about punctuation. (Believe it or not.) The author is quite tongue-in-cheek about the topic. If you want to have a fun read, and painlessly learn something about correct punctuation in the process, I would recommend this book.
Speaking of painlessly learning something, I like to painlessly learn by reading novels, historical and otherwise. I read The Kite Runner recently and learned a lot about the culture of Afghanistan. A lot of the history I know I've learned by reading historical novels.
(in Good reading, Fun)
Tina Lau, North County Librarian