The Whitman Pocket Checklist of United States Coins is an easy way for collectors to keep track of their U.S. coin collections. Each pocket guide packs a lot of information into one handy resource you can carry. You can take it to coin shows and shops while you're looking for your next purchase. The spiral binding allows you to easily flip it open for note-taking. There is plenty of room to write down things on the inside like when and where you bought each coin, its grade, the price you paid, who sold it, or other information you want to record.