This book contain’s Peterson’s take on the subject of photographic composition. It’s considerably more freewheeling than Grill & Scanlon’s book on the subject, and covers the ground rather differently. There was little in it that was surprising–the main points are all touched on, though in less detail, in Peterson’s other books, Understanding Digital Photography and Understanding Exposure. I enjoyed it, though, and I expect to read it again later on, when I’ve more experience under my belt.