Educational planning cannot succeed without attention to social factors. Basically, all authors agree that sociology of education deals with three categories of problems. First, it involves study of relations between educational systems and the rest of society, including the economy. The second category of problems is related to the educational system or school as a social system or organization in itself. Third, sociology of education deals with the social aspects of the learning process. Clearly, sociology of education is related in numerous ways to the various problems that educational planners have to face. To learn to look for social factors and social forces and their mutual interdependence and to view education as an integral part of a social whole is probably the most important component of sociological sensibility and of the sociological approach to educational planning. (Author/JG)