From to and , Wagner illuminates Dos Passos' work with fresh readings and new interpretations. She makes extensive use of unpublished manuscript material so that this is a casebook of Dos Passos' interest in craft and method as well as a thematic study. In addition, this volume chronicles the years during which Dos Passos wrote—the immediate post-World War I period through the twenties and thirties and well into the fifties. This is an important book both in literary criticism and in American social history.