These documents provide background information and a series of problems and activities to familiarize students with important maritime activities in the United States. Book I contains problems involving the movement of freight on inland waterways, questions on energy and the environment, and a chart with questions on United States oil imports. Book II features information on hydroelectric power, water transportation, and energy consumption. The third book traces the history and influence of the sea on America and discusses shipbuilding, trading, commercial fishing, leisure time, and the arts. The growing interest in marine science and the development of maritime parks and museums are noted. Annotated lists of pertinent periodicals, books, pamphlets, and films are included. (KC)