The USPS 2005 Commemorative Stamp Yearbook is a publication by the United States Postal Service that showcases a collection of commemorative stamps issued in the year 2005. This yearbook contains a variety of stamps with different designs and themes, making it a valuable reference for stamp collectors and enthusiasts. While it does not include any actual stamps, it provides detailed information about each stamp and serves as a useful resource for those interested in collecting stamps from this specific year.