Cambridge Medieval Textbooks (1992–2011)
- The Norman Kingdom of Sicily (1992)
- The Medieval Spains (1993)
- Religion and Devotion in Europe, c.1215-c.1515 (1995)
- The Wars of the Roses (1997)
- Standards of Living in the Later Middle Ages (1998)
- A History of Business in Medieval Europe, 1200 1550 (1999)
- The Crusades, c.1071 - c.1291 (1999)
- Roger II of Sicily (2002)
- The Jews of Medieval Western Christendom (2006)
- Barbarian Migrations and the Roman West, 376-568 (2008)
- The Carolingian World (2011)