This Companion provides a comprehensive introduction to one of the most vibrant and expansive traditions in world literature. The American West occupies a unique place in the global imagination, and the literature it produced transcends the category of 'region' in theme and form. Written by prominent international scholars, the essays cover a diverse group of key texts and authors, including major figures in the Native American, Hispanic, Asian American, and African American movements. Treatments range from environmental and ecopoetic to transnational and transcultural, reflecting the richness of the field. This volume places the literature in deep historical context and features a chronology and a bibliography for further reading. It will be an essential guide for students of literature of the American West and of American literature generally.