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A call number is a series of letters and numbers that helps you locate a physical item on a library shelf.
University libraries use the Library of Congress Classification System (LCCS) to organize our print collections. This system assigns unique call numbers to each item on the shelves. The call numbers group similar subjects together according to their classification (see the “Library of Congress Classification” box to the left), which makes browsing easy. If you find one item of interest on the shelf, look around it at the other books because the titles nearby are of the same or similar subject and may also be of interest. Be advised, however, that not all books on a topic will be in the same section if the topic spans multiple disciplines. For example, film still photography might be located under cinema studies, photography, or even cultural studies, depending on the subject.