At the height of the civil rights movement, Ernest Withers took some of its most legendary photographs: Martin Luther King, Jr., riding a newly integrated bus; Emmett Till's uncle pointing across the courtroom at his nephew's killer; scores of African-American protestors carrying signs reading "I am a man." But after Withers's passing, it was revealed that the Memphis-born artist had been an FBI informant. In this illustrated biography, Preston Lauterbach examines the complicated political and economic forces that informed Withers's seeming betrayal of the people he photographed, while offering a nuanced, insider's view of the movement.