Adult education is one form of education which is implemented at outside of formal schooling. The targets of adult education implemented at outside of school which is an adult who has experience to attend formal education. The experienced from adult has related to the implementation of education that included an adult who has not received formal education, dropped out from formal school or for those who has never completed formal education, but the adult wants to increase their knowledge, skills and attitude that adult needs in his daily life. Adult education that implemented outside school should be based on learning needs that grow from within themselves, and not based on the influence of conditions from outside themselves. For the success of an adult learning activity, out-of-school education practitioners need to pay attention to the factors that affect adults in learning and should understand the assumptions about adults in learning. Among the assumptions of adult in learning is that adult has self-concepts. Adult self-concept among others has seemed themselves as independent people who are not dependent on others anymore. This self-concept as a guide for education practitioners to carry out learning activities for adults.