Statistics on the social, political, and economic organization of the U.S. are summarized in this volume which is designed to serve as a convenient resource for statistical reference and as a guide to other statistical publications and sources. The latter function is served by the introductory text to each section, the source notes appearing below each table, and an appendix. The new tables in the 1975 edition reflect subjects of strong and continuing public interest. Among them are: health related problems, crime, environmental concerns, federal government benefits and taxes, earnings, income shares of poorest and wealthiest, cost of living, big business, oil and gas, handicapped pupils, illiteracy by state, college enrollment, work-injury and illness rates, countries receiving U.S. food aid, and various others. Altogether, there are 78 entirely new tables scattered through 26 sections. All graphic charts have been redesigned and standardized, and the number of tables showning both U.S. and metric units have been moderately increased. Many sections have undergone tabular rearrangement and format changes designed to improve the organization of subject matter. (Author/AM)