The subject is Sextus Empiricus, one the chief sources of information on ancient philosophy and one of the most influential authors in the history of skepticism. Sextus' works have had an extraordinary influence on western philosophy, and this book provides the first exhaustive and detailed study of their recovery, transmission, and intellectual influence through Late Antiquity, the Middle Ages, and the Renaissance. This study deals with Sextus' biography, as well as the history of the availability and reception of his works. It also contains an extensive bibliographical section, including editions, translations, and commentaries.