Superheroes Rise From Camp to Art: Virginia Postrel

Oct. 7 (Bloomberg) -- The newest banner in the window of the Andy Warhol Museum in Pittsburgh features a strikingly realistic portrait of Superman. Unfazed as bullets bounce from his chest, neck and forehead, the Man of Steel wears a calm, resolute expression, made all the more convincing by the creases and fine lines of early middle age.

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