This resource booklet presents information on self concept, its effect on students and teachers, and its treatment in the classroom. The first section covers self concept theories, characteristics of the self, personality theories and self concept, and the development of the self concept. The educational implications of self concept are discussed in the second section. Relationships among teacher self concept, student self concept, academic achievement, and teacher effectiveness are detailed. The measurement of self concept is the topic of the third section, which includes a behavior rating form and a self concept inventory. The fourth, fifth, and sixth sections deal with strategies to improve self concept. Teachers' self concepts can be improved through organizational development, school climate enhancement, supervision and management, and the ability to cope with stress. Students' self concepts can be improved through teacher effectiveness training, transactional analysis, group dynamics, self awareness techniques, contract learning, peer influence, physical self enhancement, leadership training, and career education. Also included in this booklet are a list of resource people who can help in various areas of self concept and an annotated bibliography. (CJ)