His special interest is in the influence of classical and late-antique Latin works on Italian medieval writers, in particular Dante and Boccaccio.
Published work includes Stratigrafie decameroniane (Olschki, 2004), articles on Dante, Boccaccio, Petrarch, and Giovanni della Casa, as well as on the tradition of the twentieth-century novel and contemporary Italian cinema. In the past, he has collaborated on the design and realization of Progetto Italica, a multimedia course of Italian language and culture accessible on the Web and hosted by the University of Notre Dame.