Based upon data collected annually by the American Association of Community and Junior Colleges (AACJC), this directory provides information on 1,141 community, junior, and technical colleges and two-year branch campuses in the United States and its territories, including 1971 and 1972 data on enrollments and personnel. Following introductory material on the scope of the directory, a historical overview is presented of the junior college movement from 1900 to 1972. Next, the directory lists colleges alphabetically by state or country and provides the following information for each: location; chief administrative head; telephone number; year classes began; type of control or affiliation; AACJC membership; state recognition or accrediting agency; types of programs (i.e., transfer and/or occupational); co-educational or single-sex status of school; October 1971 enrollments broken down for full- and part-time freshman, sophomore, and unclassified students; total October 1971 enrollment; enrollment in summer session 1972; October 1972 enrollment; full- and part-time faculty and administrators in 1972-73; tuition or all-inclusive fee; and type of academic calendar. Next, tables provide statewide enrollment and personnel summaries for all institutions and for public and independent colleges and show the distribution of two-year colleges by size. Lists of changes in institutions since the previous year, community and junior college organizations, and state administrators for two-year college education conclude the directory. (AYC)