A conversation with Dr. William Woys Weaver, an international food historian, author, teacher, gardener, and epicure. Dr. Weaver is the founder of the Roughwood Seed Collection, which houses over 4000 heirloom food plants. Dr. Weaver is also the director of the Keystone Center for the Study of Regional Foods and Food Tourism™, located in the historic Lamb Tavern in Devon, Pennsylvania. The Keystone Center is an independent research institute unaffiliated with state or private industry organizations. Its primary purpose is the survey, documentation, and promotion of Pennsylvania’s five regional food identities, their related culinary cultures in Europe, and their diasporas within the United States.