Sometime Lyell Fellow in Bibliography, Merton College, Oxford.

Publications include ‘On the difference between virtue and Weiss: humanist texts in England during the fifteenth century’, in D.E.S. Dunn (ed.), Courts, Counties and the Capital in the Latter Middle Ages (1996); ‘Two unnoticed manuscripts from the collection of Humfrey, Duke of Gloucester’, in Bodleian Library Record 16 (1998); ‘Humanism before the Tudors’, in J. Woolfson (ed.), Reassessing Tudor Humanism (2002); ‘Was there a Renaissance style of politics in fifteenth-century England?’, in G.W. Bernard et al. (eds), Authority and Consent in Tudor England (2002); ‘Habits of manuscript-collecting : the dispersals of the Library of Humfrey, Duke of Gloucester’, in J. Raven (ed.), Lost Libraries (2004); ‘Filippo Alberici, Henry VII and Richard Fox: the English fortunes of a little-known humanist’, in Journal of the Warburg and Courtauld Institutes 68 (2005); ‘Humanist eloquence among the barbarians in fifteenth-century England’, in C. Burnett et al. (eds), Britannia Latina: Latin in the Culture of Great Britain from the Middle Ages to the Twentieth Century (2005); ‘The scribe Thomas Candour and the making of Poggio Bracciolini’s English reputation’, in English Manuscript Studies 12 (2005); ‘The Unoriginality of Tito Livio Frulovisi's Vita Henrici Quinti’, in English Historical Review 123 (2008).

Research and teaching interests include English and European humanism, political theory and political practice.