Chicago is a city known for its fabulous architecture and public sculpture by artists such as Picasso and Calder, but anyone who has seen the gorgeous lunettes in the Auditorium Theater or the South Side's Wall of Respect, which inaugurated the city's contemporary mural movement, knows that Chicago has an equally rich tradition of mural painting. Through these murals, the history of Chicago and the nation is writ in churches and lobbies, on viaducts...