Open Learning Units offer a very flexible teaching approach. They are designed to be more than sufficient for the purposes of pre-degree psychology and some introductory undergraduate courses in the social sciences. The applied emphasis will also appeal to various vocational courses and also to mature students on Access courses. Their primary use will be in the classroom with a tutor's guidance, but the interactive style makes them equally appropriate for the purposes of self-study. More advanced students might want to use the Units to learn at their own pace, and in all cases, the careful structure of the writing and the extensive use of Examples, Open Questions and Self-Assessment Questions make them ideal revision guides.