- The Gesta Tancredi Of Ralph Of Caen: A History Of The Normans On The First Crusade (Crusade Texts in Translation)
- The Mystic Mind The Psychology of Medieval Mystics and Ascetics
- Fulk Nerra, the Neo-Roman Consul 987-1040: A Political Biography of the Angevin Count
- Early Carolingian Warfare: Prelude to Empire (Middle Ages Series)
- Early Medieval Jewish Policy in Western Europe