Review of 'Artists on the Left', Andrew Hemingway, Yale University Press £35
In the heart of San Francisco's city district can be found the popular tourist attraction Coit Tower. Lifts take you to the top, from which you get a magnificent bird's-eye view of the bay. Once a week, for a few brief hours, the stairwell is open to the public. Inside is an Aladdin's cave full of some of the finest murals in America. Inspired by the famous Mexican muralist Diego Rivera, artists like Clifford Wright, Bernard Zakheim and Victor Arnautoff have created a stunning series of wall paintings depicting life in the US.