Celebrating America’s 250th Anniversary of the signing of the Declaration of Independence, 2026 edition of the H.E. Harris United States Postage Stamp Catalog & Price Guide arrives in an all-new, lay-flat Swiss-bound hardcover format for effortless use. Trusted by collectors for over 90 years and internationally recognized as an award-winning reference, this indispensable volume is America’s best-selling stamp catalog—updated and reimagined for 2026. Designed for every collector, from novice to expert, the 91st edition price guide features market prices for United States General and Commemorative issues; air post, postal stationery, and Official stamps; Revenue stamps, Newspaper and Periodical issues; U.S. Possessions and Trust Territories; and Confederate States. Inside you’ll find: Over 4,500 full-color stamp images showcasing classics through modern issues All popular collecting formats: singles, mint sheets, plate blocks, coil line pairs, booklet panes, first day covers, postal stationery, and more Illustrated Stamp Identifier: with detailed descriptions and images to distinguish among common and rare look-alike stamps Collector’s Guide: covering design varieties, production methods, formats, grading and condition criteria, and postal markings. Comprehensive commemorative index and practical how-to tips for valuing and organizing your collection Whether you’re building a new collection or refining an established one, the H.E. Harris 2026 United States Postage Stamp Catalog & Price Guide remains the definitive, easy-to-use resource—rich in information, collector value, and timeless philatelic tradition.