Handbook of United States Coins 1989 by R. S. Yeoman (often called the “Blue Book”) is a standard annual reference guide for coin collectors and dealers. Unlike Yeoman’s Red Book (A Guide Book of United States Coins), which lists retail values, the Blue Book provides wholesale prices—the amounts dealers typically pay when buying coins. The 1989 edition includes updated market values, detailed listings of U.S. coins from colonial issues to modern mintages, and practical information for collectors, making it a trusted resource in the numismatic community.