Dr. Kenneth Clark visited rundown and under-resourced segregated schools across America, presenting Black children with two dolls: a white one with hair painted yellow and a brown one with hair painted black. The psychological experiment Kenneth developed with his wife, Mamie, designed to measure how segregation affected Black children's perception of themselves and other Black people, was enlightening―and horrifying. Over and over again, the young children selected the white doll as preferable, and the brown doll as "bad." This is the story of the towering intellectual and emotional partnership between two Black scholars who highlighted the psychological effects of racial segregation.