Scott Catalog of Errors on U.S. Postage Stamps

Scott Catalog of Errors on U.S. Postage Stamps
2026 20th Edition
Since the previous edition, the editorial team has undertaken a comprehensive review of the catalog. A substantial number of values have been updated to better reflect current market activity. Visual presentation has also been neamingfully improved, Numerous illustrations that aprviously appeared in black and white are now presented in full color, providing clearer and more informative views of these important errors.

The catalogue is highly regarded by philatelists for its detailed focus, providing insights into rarities and error-like, printer's waste, and abnormal stamp production, generally covering, for instance, from 1857 up to the early 2000s in earlier editions

The 20th edition was released in February 2026, featuring extensive updates to values and new full-color illustrations.