If the aim of argumentation is that of increasing acceptance of the orator’s thesis (Perelman and Olbrechts-Tyteca 1969, 49), then the ultimate goal of counsel, a widespread argumentative practice within the genres of discourse as well as literature, is indeed persuasion. The subject of this essay—that is, the rhetoric of counsel—allows us to observe the interpretative richness of this element of the “new rhetoric” through examples offered by Dante, Giovanni Boccaccio, Lucrezia Borgia and Niccolò Machiavelli, straddling the late Middle Ages and the Renaissance, bridging the fi elds of literature and history.

After a brief historical-methodological overview, this study is meant to prove that the theory of rhetorical genres (deliberative, judicial and epideictic), connected to that of the literary genres, offers scholars more insightful critical opportunities. The nouvelle rhétorique, applied to the analysis of rhetorical and literary genres, permits to unveil the argumentative dimension in literature. We have evaluated some passages of the Decameron and I promessi sposi [The Betrothed], two of the great classics of Italian literature, differing by historical settings, genres and contents. The two books have been analyzed from the rhetorical perspective. I promessi sposi [The Betrothed] may be interpreted as an instance of judicial genre, while the Decameron as deliberative and epideictic genres.