This pamphlet describes SIGI, a computer-based System of Interactive Guidance and Information designed to help students in community and junior colleges make career decisions. SIGI is based on a humanistic philosophy, a theory of guidance that emphasizes individual values, a vast store of occupational data, and a strategy for processing information. The system is designed so that students who are at different stages in career decision-making may use SIGI in distinctive ways. The main purposes of SIGI are to increase students' freedom of choice, to develop their understanding of the elements involved in choice, and to improve their competence in the process of making informed and rational career decisions. (RWP)