“The Lithographed Map” traces the impact of lithography on map production and consumption in the decades leading up to the Centennial Exhibition of 1876. After a brief survey of map-making technologies, the talk presents new research exploring the way in which lithography affected map design and the business of cartography. Lithographed maps coincided with the commercialization of visual prints, the invention of mass-marketing, and a nascent culture of window-shopping and store-browsing. Ultimately, this talk shows how in the wake of lithographic production it was map publishers rather than map authors who defined the design, content, and use of modern American cartography. This lecture is open to the public.