In The Epistemology of Rhetoric: Plato, Doxa, and Post-Truth, Erik Bengtson sets out to formulate a contemporary epistemology of rhetoric considering the prevailing post-truth condition. In pursuit of this objective, Bengtson challenges dominant myths surrounding Plato's influence on rhetoric and examines the contemporary scholarly discourse on doxa, shedding light on its various facets. He also introduces the concepts of sedimentation and erosion as tools for comprehending the protracted nature of argumentation on foundational issues. This work not only advances our comprehension of rhetoric in the context of the post-truth era. It also invites readers to reconsider established perspectives, offering fresh insights into the dynamics of argumentationover time.