Book VI of Livy’s Ab urbe condita covers the history of Rome from 390 to 367 BC, a period during which the city, while in the process of recovering from being sacked by the Gauls, faced serious civil disturbance, the resolution of which fundamentally changed the structure of Roman society. This edition considers the historical text from a literary and historiographical perspective: the Commentary contains a detailed analysis of Livy’s narrative style and structure, with particular focus on his language and use of commonplaces, while the Introduction discusses the didactic nature of the Ab urbe condita and situates Livy’s sophisticated and challenging work in the ancient historiographical tradition. Special attention is paid to the role of the reader, and to the relationship between the style and the kind of history being written. Issues of contemporary Augustan politics are also discussed.