The essays in American Literature in Transition, 1820-1860 offer a new approach to the antebellum era, one that frames the age not merely as the precursor to the Civil War but as indispensable for understanding present crises around such issues as race, imperialism, climate change, and the role of literature in American society. The essays make visible and usable the period’s fecund imagined futures, futures that certainly included disunion but not only disunion. Tracing the historical contexts, literary forms and formats, global coordinates, and present reverberations of antebellum literature and culture, the essays in this volume build on existing scholarship while indicating exciting new avenues for research and teaching. Taken together, the essays in this volume make this era’s literature relevant for a new generation of students and scholars.