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"
![](https://npr.brightspotcdn.com/dims4/default/be7c29f/2147483647/strip/true/crop/1200x500+0+0/resize/880x367!/quality/90/?url=http%3A%2F%2Fnpr-brightspot.s3.amazonaws.com%2Flegacy%2Fsites%2Fkansaspublicradio.org%2Ffiles%2Friver_of_blood_0.jpg)