How our image of the Renaissance’s most famous artist is a modern myth Leonardo da Vinci (1452–1519) never signed a painting, and none of his supposed self-portraits can be securely ascribed to his hand. He revealed next to nothing about his life in his extensive writings, yet countless pages have been written about him that assign him an identity: genius, entrepreneur, celebrity artist, outsider. Addressing the ethical stakes involved in studying past lives, Stephen J. Campbell shows how this invented Leonardo has invited speculation from figures ranging from art dealers and curators to scholars, scientists, and biographers, many of whom have filled in the gaps of what can be known of Leonardo’s life with claims to decode secrets, reveal mysteries of a vanished past, or discover lost.