Adult education is the practice of teaching and educating adults. Adult education takes place in the workplace, through 'extension' or 'continuing education' courses at secondary schools, or at colleges or universities. Other learning places include folk high schools, community colleges, and lifelong learning centers. The practice is also often referred to as 'Training and Development'and is often associate with workforce or professional development. It has also been referred to as andragogy (to distinguish it from pedagogy). Adult education is different from vocational education, which is mostly workplace-based for skill improvement; and also from non-formal adult education, including learning skills or learning for personal development.