Literary naturalism—especially in the American tradition—is a useful mode to explore the significance of the nonhuman, since it can be utilized to focus on the various nonhuman creatures, objects, and natural and created environments that affect human beings. Brandt and Danielsson consider naturalism very broadly, in some instances focusing on authors readers might not immediately connect to literary naturalism. Authors addressed in the volume include Frank Norris, Jack London, Theodore Dreiser, Ernest Hemingway, Stephen Crane, Willa Cather, Edith Wharton, and others. The collection includes 15 essays (plus a helpful introduction cowritten by the editors) authored by an international collection of scholars of American literature who are informed by ecocriticism, animal studies, posthumanism, and cultural materialism. Essays typically rely on sophisticated theoretical positions, but the collection remains accessible and is overall an insightful and provocative exploration of the significance of the nonhuman in American literary naturalism. Recommended. Upper-division undergraduates through faculty.