Education is the organized teaching and training of students. Education is the application of pedagogy, a body of theoretical and applied research relating to teaching and learning. It draws on other disciplines such as psychology, philosophy, computer science, linguistics, neuroscience, sociology and anthropology. Schooling occurs when society, a group, or an individual sets up a curriculum to educate people, usually the young. Schooling can become systematic and thorough. Sometimes education systems are used to promote doctrines or ideals as well as knowledge, and this can lead to abuse of the system. Life-long or adult education has become widespread in many countries. However, education is still seen by many as something aimed at children; and adult education is often branded as adult learning or lifelong learning. Adult education takes on many forms, from formal class-based learning to self-directed learning. Lending libraries provide inexpensive informal access to books and other self-instructional materials. Many adults have also taken advantage of the rise in computer ownership and internet access to further their informal education.