He is Lecturer and Tutor of Medieval History at Oxford University, as well as a tutor and Keeper of the Gardens at Wadham College. Most recently he has published Rhetoric and the Writing of History (Manchester 2011). According to WorldCat, the book is held in 196 libraries.
His main interests are in the "reception of Aristotle"s ethical and political ideas, on the connections between Ciceronian rhetoric and medieval historiography, on the ideology of medieval kingship, and on the understanding of classical republicanism by scholastic theologians and early renaissance humanists".
