Robert W. Sharples is Emeritus Professor of Classics at University College London. He has published extensively on the Peripatetic tradition in antiquity, notably in the context of the Theophrastus Project and of the Ancient Commentators on Aristotle series. He is currently a member of the team working on the decipherment of a commentary on Aristotle preserved in the Archimedes Palimpsest. He has also published a successful textbook, Stoics, Epicureans and Sceptics (1996), and a number of editions of ancient texts.