Cheryl Finley is assistant professor of art history at Cornell University. She is coauthor of "I""maging African Art: Documentation and Transformation."Laurence Glasco is associate professor of history at the University of Pittsburgh. He is the author of "Ethnicity and Social Structure: Irish, Germans, and Native-Born of Buffalo, N.Y., 1850-1860 "and editor of "The WPA History of the Negro in Pittsburgh."Joe W. Trotter is Giant Eagle Professor of History and Social Justice at Carnegie Mellon University. He is the author, coauthor, or editor of numerous books, including T"he African American Urban Experience: From the Colonial Era to the Present "and" Race and Renaissance: African Americans in Pittsburgh since World War II."