Next to napalm in the morning, one of my favorite smells in the world is that of a good, used bookstore. Do yourself a favor and skip the Barnes & Nobles and Schulers and check out the Curious Book Shop in East Lansing.
While they lack a barista or music section, they more than make up with it in their endless volumes of used books. You can find tomes on every subject under the sun and can find rare and out-of-print volumes that the larger chain stores simply do not stock. Since it is located in the heart of East Lansing, parking can be a bit of a hassle, but once you get into the store you will find it to be a very rewarding experience and you will leave with some very interesting books.