The New Rhetoric project featured an eleven-year collaboration between Lucie Olbrechts-Tyteca and Chaim Perelman, which culminated with their 1958 magnum opus, "Traite de l'argumentation: la nouvelle rhetorique". Scholars have long speculated about Olbrechts-Tyteca's role in the New Rhetoric project and her relationship with Chaim Perelman. Building from the work of Barbara Warnick, a synchronic and diachronic analysis of their collaboration yields insight on the nature of their collaboration, putting a spotlight on the scholarship of Olbrechts-Tyteca and the role she played in the New Rhetoric project. Their collaboration pairs Perelman, the philosopher concerned about the human being reasoning, with Olbrechts-Tyteca, the literary critic who, using the theoretical frame of the New Rhetoric project, systematically developed the role of the comic in rhetorical theory. (Contains 1 table and 86 notes.)