- Geography, Technology, and War: Studies in the Maritime History of the Mediterranean, 649-1571 (Past and Present Publications)
- The Age of the DROMON: The Byzantine Navy ca 500-1204 (The Medieval Mediterranean)
- Travel in the Byzantine World: Papers from the Thirty-Fourth Spring Symposium of Byzantine Studies, Birmingham, April 2000 (Publications for the Society for the Promotion of Byzantine Studies, 10)
- Shipping, Trade and Crusade in the Medieval Mediterranean: Studies in Honour of John Pryor
- Commerce, Shipping and Naval Warfare in the Medieval Mediterranean (Collected Studies Series ; No. Cs259)