On this edition of Conversations, Richard Cahan talks with host Dan Skinner about "River of Blood: American Slavery from the People Who Lived It." Cahan is a journalist who writes about photography, art and history. Working together as photo historians, Richard Cahan and Michael Williams have authored more than a dozen books based on major photo collections.
Conversations: Richard Cahan, "River of Blood: American Slavery from the People Who Lived It"
