The Smithsonian Institution’s National Museum of American History (NMAH) is featured in Advertising & Society Quarterly’s first “Advertising in the Archives” article, which is an occasional piece about an advertising archive in the United States or elsewhere in the world. Structured as an interview of senior archivist John A. Fleckner by curator Kathleen Franz, the conversation details how the NMAH’s archives and material collections have developed, how materials are collected, why oral histories are important, why advertisements are ideal materials for museum exhibitions, how to use NMAH materials, the distinction between archivists and curators, and how the NMAH is moving into the largely digital future of collecting, preserving, and sharing advertising history.