"Human Societies" differs from most texts written for the introductory sociology course, being neither a survey of contemporary Americana society nor an eclectic, encyclopedia-like collection of topics, perspectives, and conflicting theories. Taking a macrosociological, global approach, it offers an introduction to sociology that is truly comparative, cross-cultural, and historical. It compares societies over time and across environments, emphasizing the dynamics of social change. Its clearly developed ecological-evolutionary perspective provides a powerful theoretical framework for understanding the array of social arrangements found in human societies over the past 100,000 years. Since industrial societies are encountered only after this theoretical base has been firmly established and older, simpler, and smaller societies have been examined in detail, students see their own society (and other contemporary societies) in a broader and more meaningful way. By showing how social arrangements are related to the environmental and technological context societies are situated in, it encourages students to look for the reasons why social arrangements are the way they are, and why they change over time.