Research Statement
My research interests are in the crusades and the Latin states in the East (especially in the twelfth and thirteenth centuries), military orders (especially the Templars), heresy (especially the Cathars), and social and environmental change in the High Middle Ages.

Undergraduate teaching
I contribute to our Part I course on ‘Landmarks in European History, 622-1945’ (see details above). For Parts II and III, I teach a survey course, ‘The Medieval West, 1050-1200’, an optional course, ‘Art and Society in France and Italy in the High Middle Ages’, and a special subject, ‘The Crusader States in the Twelfth Century’.

Postgraduate teaching
I contribute to the History core course and the Historical Methods course for the MA in the Graduate Centre for Medieval Studies, as well as offering supervision for dissertations and essays on crusades and heresy. I also supervise M.Phil. and Ph.D. students in the general fields covered by my research interests (see above) in both the School of History and the Graduate Centre for Medieval Studies.

Publications
Books
The Trial of the Templars (Cambridge, 1978)
The Two Cities. Medieval Europe 1050-1320 (London, 1992)
The New Knighthood. A History of the Order of the Temple (Cambridge, 1994)
Crusaders and Heretics, Twelfth to Fourteenth Centuries. Collected Studies (Aldershot, 1995)
The Cathars. Dualist Heretics in Languedoc in the High Middle Ages (London, 2000)

Edited Works
(With P.Noble and P. McNulty) East Anglian and Other Studies presented to Barbara Dodwell (Reading, 1985)
The Military Orders: Fighting for the Faith and Caring for the Sick (Aldershot, 1994)
(With K. Bate) The Templars: Selected Sources (Manchester, 2002)

Editing
(With P. Noble and J. Norton-Smith) Reading Medieval Studies (1977-85)
Annual Bulletin of the Society for the Study of the Crusades and the Latin East (1986-90)
The Journal of Medieval History (1996-2001)
Crusade Texts in Translation, Ashgate Publishing, 1997-

Articles and Contributions
Over forty articles in academic and popular journals, conference proceedings, Festschriften, and works of reference. 

Forthcoming
(With M. Ailes) Ambroise, The History of the Holy War, ed. and trans. (Woodbridge, 2003)

Further Details
Professor Barber currently holds the post of Research Fellow in the Faculty of Arts and Humanities. He is a former Director of the Graduate Centre for Medieval Studies. He has held Fellowships from the Wolfson and Leverhulme Trusts, the British Academy, and the National Humanities Center, North Carolina.