The Official Blackbook Price Guide to United States Postage Stamps 2011

This guide lists every U.S. coin ever minted and more than 18,000 coin prices. An essential guide for collectors, it also features:
- Extensive information on buying and selling coins at auction, coins shows, online, and through the mail
- A full explanation of the American Numismatic Association's official grading system
- A fast-find coin index for easy coin identification, as well as hundreds of coin photographs