This comprehensive reference volume features essays by some of the most distinguished scholars in the field.

• Provides a comprehensive "who's who" guide to medieval philosophers.
• Offers a refreshing mix of essays providing historical context followed by 140 alphabetically arranged entries on individual thinkers.
• Constitutes an extensively cross-referenced and indexed source.
• Written by a distinguished cast of philosophers.
• Spans the history of medieval philosophy from the fourth century AD to the fifteenth century.

Jorge J. E. Gracia is Samuel P. Capen Chair and Distinguished Professor of Philosophy at the State University of New York at Buffalo. He is author of several books, including Hispanic/Latino Identity (Blackwell, 2000) and How Can We Know What God Means? (2001). He is the editor, with Gregory M. Reichberg and Bernard N. Schumacher, of The Classics of Western Philosophy (Blackwell, 2003).

Timothy B. Noone is Ordinary Professor of Philosophy at The Catholic University of America. His books include Ioannes Duns Scoti, Quaestiones super librum Porphyrii, Quaestiones super Praedicamenta (1999).