Breakfast at Tiffany's by Truman Capote This novella is fairly different from the movie version (the male protagonist is gay.pretty big difference) and Capote's prose is simply stunning, so even if you've seen the movie, this is still worth the read!
In Cold Blood by Truman Capote. If you've ever taken a journalism class, you've probably read Truman Capote's seminal nonfiction book about a murder in a quiet town, "In Cold Blood." It's a classic for a reason. Everyone should read it.