Professor of English, University of Warwick, Fellow of the British Academy, Head of Arts Faculty, University of Warwick, 1995–1998, Head of Department of English and Comparative Literary Studies, 2001–2004, British Academy Research Readership 2004–2006, Director of the Warburg Institute and Professor of the History of the Classical Tradition, 2010–2014.
- (edited) England and the Continental Renaissance: Essays in honour of J. B. Trapp (Cambridge, 1990)
- Renaissance Argument: Valla and Agricola in the Traditions of Rhetoric and Dialectic (Leiden, 1993)
- (edited) Renaissance Rhetoric (London, 1994)
- Elizabethan Rhetoric: Theory and Practice (Cambridge, 2002)
- "Rhetoric, Ethics and reading in the Renaissance", Renaissance Studies 19 (2005), 1–21
- "Vives's Contributions to Rhetoric and Dialectic", in C. Fantazzi ed., A Companion to Juan Luis Vives (Leiden, 2008), 227–76
- "Montaigne and Shakespeare: Source, parallel or Comparison", Montaigne Studies 23 (2010)
- Reading and Rhetoric in Montaigne and Shakespeare (London, 2010)
- A History of Renaissance Rhetoric 1380–1620 (Oxford, 2011)
- "Madness, Proverbial Wisdom and Philosophy in King Lear", in P. Gray and J. Cox eds, Shakespeare and Renaissance Ethics (Cambridge, 2014), pp. 284–303.