Stephen Gersh engages here with the Platonic tradition in European thought from the 4th to the 14th century. The essays discuss important figures in the history of Platonism such as Porphyry, Proclus, Boethius, Eriugena, Anselm of Canterbury, and Thierry of Chartres, and together serve to demonstrate the variety, continuity, and especially creativity of these writers.