The magnitude, diversity, and impact of distance education are discussed in this international review of its implementation in economically diverse countries. Uses of the following media are described: (1) print--correspondence study, programmed instruction, modularized instruction, newspaper; (2) audio media--telephone, radio, subsidiary communications authority; (3) video media--broadcast and cable television, instructional television fixed service, videocassettes and videodiscs, satellites; and (4) computers, especially computer assisted instruction and computer managed instruction. Discussion of organization and administration focus on organizational structure, cooperation with other institutions, finances, course development costs, student services, telephone and computer-assisted counseling, and registration. Faculty and student issues discussed include faculty rewards, delivery faculty roles, development faculty roles, and student characteristics and attrition. Research and evaluation are briefly reviewed in terms of determining learner needs, evaluation criteria, and comparisons with campus institutions. A summary, conclusions, and a 7-page reference list are included. (LMM)