This article explores Lucian’s treatise, How to Write History, in the context of ancient rhetorical and literary theory. While situated within the domain of historiography, the treatise prioritizes issues related to literary composition, such as the linguistic register and content selection deemed fitting for the historical genre. Through comparisons with critics and theoreticians like Aristotle and Demetrius, this study re-evaluates Lucian’s instructions for preface writing and other stylistic guidelines throughout the work. The conclusions highlight Lucian’s innovative approach to historical composition, influenced by rhetorical and literary theory yet reshaped to fit his vision of history and its purpose. Additionally, the examination reveals Lucian’s strategic use of rhetorical and literary theory in critiquing not only writing style but also issues intrinsic to history.