Part of a geography series which stresses understanding of the environment through mastery of specific skills and concepts, the secondary level textbook investigates the interrelationships between humans and the goods they produce. The book is presented in 26 chapters organized around five main themes: (1) agricultural production, (2) manufacturing production, (3) difficulties that men of different backgrounds experience in living and producing together, (4) the relationship between living standard and health, and (5) interactions between men and specific environments. Cognitive, affective, and psychomotor objectives are listed in the introduction, and a final chapter suggests questions and activities for measuring student mastery of the objectives. Chapter format generally includes background information, illustrations, maps, graphs, and discussion questions. Some chapters also include learning activities such as library research, map work, essay assignments, and model construction. The major learning activities, however, are presented in the final chapter in which students are directed to apply analytic skills developed throughout the global system series to hypothetical farm and factory data. Specifically, students are expected to construct a map and systems diagram of the farm and factory from information presented, explain the layout of each site, and determine whether the uses to which men are putting the site are suitable in terms of suggested variables. (Author/DB)