River of Blood American Slavery from the People Who Lived It: Interviews & Photographs of Formerly Enslaved African Americans

Richard Cahan and Michael Williams are noted photo historians. They have teamed up to produce more than twelve books. Most are based on long-lost archives or photographic collections. Called "the eloquent archival sleuthing duo" by Booklist magazine's Donna Seaman, they have written award-winning books about photography, art, and history, including two on Vivian Maier, the reclusive nanny whose discovered photographic work has become a worldwide sensation.

Their most recent book is Un-American, a careful look at government photographs taken of the incarceration of Japanese Americans during World War II by Dorothea Lange and other government photographers. Wrote Booklist: "In this unique, richly produced volume, they showcase 170 magnificent black-and-white pictures accompanied by an exceptionally illuminating narrative to tell the staggering stories of the resilient, courageous people Lange and others so sensitively photographed. Cahan and Williams even tracked down survivors, who share haunting memories. The result is an intensely revelatory and profoundly resonant book of beauty and strength, history and caution."

Adam Green is a history professor at the University of Chicago and author of Selling the Race: Culture and Community in Black Chicago, 1940-1955. He is currently helping to create the official oral history of Barack Obama's presidency, and recently contributed an op-ed piece on the 1919 Chicago race riots for the New York Times.