When a professor has materials that a large number of students need for a class, the material is usually put on reserve. To locate this material, come to the circulation desk; a notebook is available with lists of materials by the faculty member name. Books, articles and study guides are among materials that may be on reserve. Each item has a card that must be signed before taking it away from the desk. These materials can only be used in the library and cannot be taken out of the building. After using them, they must be returned to the circulation desk.