The Scott Catalogue of postage stamps, published by Scott Publishing Co, is updated annually with hundreds of thousands of changes and lists all the stamps of the entire world . From its humble beginning as a 24-page bound pamphlet, the multi-volume set now list more than 700,000 stamps from 600 different postal entities. Because of the size of each Volume, the 2021 edition has each volume split into a part A and B. So when purchasing you are obtaining the volume set of part A and B. Scott Publishing publishes a total of eight large volumes that include six volumes containing all the countries of the world, the United States Specialized Catalog, and the 1840-1940 Classic Specialized Catalogue (covering the world for the first 100 years that stamps were issued). The numbering system used by Scott to identify stamps is dominant among stamp collectors in the United States, Mexico, Canada and through out the world. It is a must for any researcher or stamp collector

Many important editorial changes enhance the '2016 Scott specialized catalogue of United States stamps and covers'.

The Scott Catalogue of postage stamps, published by Scott Publishing Co, is updated annually with hundreds of thousands of changes and lists all the stamps of the entire world . From its humble beginning as a 24-page bound pamphlet, the multi-volume set now list more than 700,000 stamps from 600 different postal entities. Because of the size of each Volume, the 2021 edition has each volume split into a part A and B. So when purchasing you are obtaining the volume set of part A and B. Scott Publishing publishes a total of eight large volumes that include six volumes containing all the countries of the world, the United States Specialized Catalog, and the 1840-1940 Classic Specialized Catalogue (covering the world for the first 100 years that stamps were issued). The numbering system used by Scott to identify stamps is dominant among stamp collectors in the United States, Mexico, Canada and through out the world. It is a must for any researcher or stamp collector

"Includes new stamp listings through the August 2018 Linn's stamp news monthly catalogue update."

The new 2023 Scott Specialized Catalogue of United Nations Stamps is the essential reference work for collectors of United Nations postage stamps and postal history. The catalog also includes listings and values for first-day covers, inscription blocks, panes and more. Separate sections are included for the Offices in New York, Geneva and Vienna, and U.N. souvenir cards, U.N. Proofs, and U.N. Temporary Executive Authority of West New Guinea, U.N. Transitional Authority in East Timor and U.N. Interim Administration in Kosovo. The United Nations section will no longer appear in the Scott Specialized Catalogue of United States Stamps and Covers, but simplified listings will continue to be included in the Scott Standard Postage Stamp Catalogue, Vol. 1.