This report examines current and historical data on international student mobility, based on surveys of foreign students and scholars in the United States and U.S. students in study-abroad programs and in the Cooperative Institutional Research Program. After a collection of summary tables, text and extensive data tables are organized into 11 chapters as follows: (1) overview; (2) enrollments by place of origin and academic level; (3) U.S. distribution of foreign students; (4) the economics of educational exchange; (5) foreign students by the Carnegie classification system; (6) academic and personal characteristics of foreign students; (7) student mobility worldwide; (8) destinations of U.S. students studying overseas; (9) foreign students in intensive English programs; (10) foreign scholars; and (11) information about the surveys used to compile the report. Brief essays on specific aspects of international educational exchange by a variety of authors are also included. (DB)