Your philatelic adventure starts here. The Smithsonian’s National Postal Museum houses one of the largest and most significant philatelic and postal history collections in the world and one of the world’s most comprehensive library resources on philately and postal history. The Library has one of the world’s largest and most accessible collections of philatelic literature. The National Postal Museum is dedicated to the preservation, study and presentation of postal history and philately through stamps and objects. The Library supports the museum’s mission: Through the preservation and interpretation of our postal and philatelic collections, the Smithsonian National Postal Museum educates, challenges, and inspires its audiences on the breadth of American experiences.