Bruce Lenthall is the Executive Director of the Center for Teaching and Learning, Advisor on Educational Initiatives to the Vice Provost for Education, and an adjunct associate professor in the Department of History. He earned his Ph.D. in American Studies from the University of Pennsylvania in 1999 and his B.A. from Carleton College. Prior to returning to Penn, he taught in the history departments at Bryn Mawr College and Barnard College. In his own teaching and research, he explores 20th-century U.S. cultural, political and social history. He is the author of a book on radio in the United States in the 1930s, Radio’s America: The Great Depression and the Rise of Modern Mass Culture (University of Chicago Press, 2007).