In the dark days of South Africa’s apartheid regime, poor black artists living in the township ghettos surrounding Johannesburg spent their lives creating work that no one asked for, and that the white minority ruling the country would never exhibit. But a few foreign collectors made a point of buying up what they could of the township art. “Now, in an unusual and well-orchestrated burst of generosity, these collectors are giving the art back to South Africa, helping to restore an important part of the country’s historical record.”