John W. Hartman Center for Sales, Advertising & Marketing HistoryThe John W. Hartman Center for Sales, Advertising & Marketing History acquires, preserves, and promotes materials that document the history of the advertising, marketing, and sales industries, as well as the consumer movement. The center, housed at Duke University's the David M. Rubenstein Rare Book & Manuscript Library, makes these materials available to a diverse group of researchers from around the world.