Every summer, libraries host events to encourage people to read. Ypsilanti has the Summer Challenge. In Ann Arbor, it's called the Summer Game, and it has many facets. After reading (or listening to) 10 books, you get a free book! Yay! Pretty standard for a library summer reading program. But you can also earn badges, and the badges are really where it's at if you want to win prizes.  Both Ypsi and Ann Arbor libraries use their summer programs to encourage people to explore their communities....