Peter Conn retired from the University of Pennsylvania as Vartan Gregorian Professor of English and Professor of Education and was a member of the graduate groups in the history of art and American civilization. His publications include The Divided Mind: Ideology and Imagination in America, 1898-1917 (Cambridge University Press) and Literature in America (Cambridge). Pearl S. Buck: A Cultural Biography (Cambridge) was chosen as a "New York Times Notable Book." The American 1930s: A Literary History was published by Cambridge in 2009.

Conn wrote and presented a video course and book on "American Best Sellers" for the Teaching Company. He has given talks at the Brooklyn Museum of Art, the Pennsylvania Academy of Fine Arts, the Whitney Museum, the Philadelphia Museum of Art, and other institutions, on a number of American artists, including Edward Hopper, William Christenberry, Thomas Wilmer Dewing, Maxfield Parrish, Charles Sheeler, Winslow Homer, Wharton Esherick, and The Eight.

A John Simon Guggenheim Foundation Fellow, Conn has also received several awards for distinguished teaching. He has served as literary consultant on numerous television projects, including the Emmy-winning series, "The American Short Story," adaptations of novels by James Baldwin and Saul Bellow, and a video biography of John Dos Passos.

Since 1993, Conn has served as visiting professor at the University of Nanjing in the People's Republic of China. In 2011 and again in 2013, sponsored by the Ford Foundation, Conn lectured in West China on topics in American studies.