Lee Bey is an editorial writer at the Chicago Sun-Times. He has also worked at the paper as a reporter and architecture critic. He is the author of Southern Exposure: The Overlooked Architecture of Chicago's South Side.Michael Williams is the author and co-author of more than twelve books--many based on the photo archives. His most recent book is River of Blood: American Slavery from the People Who Lived It, a collection of portraits and excerpts from formerly enslaved men and women.Richard Cahan, former picture editor of the Chicago Sun-Times, is the author or co-author of more than a dozen award-winning books, including books about slavery, World War II and Barack Obama.