Buying used books or books on sale is a great way to upgrade your personal library if you read for fun or write for a living and are inspired by hoarding books and novels of your fave authors. Most thrift bookshop guides in the Metro focus on just locations, but since most of them are already known, we show you what kind of good stuff you can purchase. The books we found may surprise you about the quality of finds in thrift bookstores around the Metro.