According to Vasari, the young Michelangelo often borrowed drawings of past masters, which he copied, returning his imitations to the owners and keeping originals. Half a millennium later, Andy Warhol made a game of ""forging"" the Mona Lisa, questioning the entire concept of originality. Forged explores art forgery from ancient times to the present. In chapters combining lively biography with insightful art criticism, Jonathon Keats profiles individual art forgers and connects their stories to broader themes about the role of forgeries in society. From the Renaissance master Andrea del Sarto.