This work investigates the evolution of the Western genre as a primary vehicle for American cultural mythology and national identity. Gary R. Edgerton, a scholar of film and television history, utilizes a comprehensive analytical framework to examine how the Western has adapted to shifting social and political climates over the twentieth century. By synthesizing historical context with formal film analysis, the text argues that the genre functions as a dynamic mirror for the changing values of the United States.

Experts recognize this text as a reliable academic overview of the Western genre's historical trajectory. Scholars frequently cite the book for its clear synthesis of complex cultural themes and its accessible approach to film history.