- American Philatelic Society - The largest public philatelic library in the United States, Its holdings include catalogues, government documents, auction catalogues, and a variety of other materials. Located in State College, Pennsylvania.
- National Philatelic Society Library (NPSL) - A library with 1750 linear feet of shelving covering all aspects of stamp collecting from 1865 to date. It is very strong on periodicals of the world.
- Rocky Mountain Philatelic Library - Houses over 5000 books on philately, issues of periodicals, auction catalogs for research purposes, a western history (postal history) and railroad collection, post office publications dating back to 1876, a collection of maps dating back to the 1870's, and an education program for children and beginning adult collectors. Denver, Colorado.
- The British Library's Philatelic Collections - A collection of stamps, postal history and books, including the Tapling Collection. Over eight million items. The collections, together with philatelic books, photographs, general reference material, maps, newspapers and official publications elsewhere in the Library, make the British Library one of the world's prime philatelic research centres.
- The Canadian Postal Archives - Provides an overview of the philatelic collections preserved by the National Archives of Canada. Includes information about every postage stamp issued by Canada and British North America since 1851.
- The Wineburgh Library - Philatelic research library at the University of Texas (Dallas) with books, periodical volumes, philatelic journals and a selection of post office publications and reports.
- Western Philatelic Library - Located in Sunnyvale, California, the library has over 8,000 philatelic books and monographs available for public examination.
