Baccio Bandinelli (Florence, 1493-1560) was one of the sculptors that worked for the house of Medici during the first half of the XVI century. A pupil of Giovan Francesco Rustici, he was strongly influenced by Michelangelo. One of his main works, 'Hercules and Cacus', is visible in the Piazza della Signoria and seen by millions of tourists each year. He also worked in Rome where he had been called by pope Clement VII. But, while his talent for sculpture was put in doubt by critics and rivals (Benvenuto Cellini, for instance), Bandinelli's extraordinary drawing skills were universally appreciated - Vasari declared him "unrivalled" in this domain. Over two hundred drawings held in the Louvre are analysed in this scholarly publication: they include autograph drawings, those by his workshop and those rejected.