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Call Numbers (Library of Congress Classification)

How to find books and other materials using their Library of Congress call numbers.

What is a Call Number?

A call number is a series of letters and numbers that helps you locate a physical item on a library shelf.

College and university libraries use the Library of Congress Classification System (LC) to organize books, DVDs, and more. These call numbers group similar subjects together, which makes browsing easy. If you find a resource on a topic of interest, books nearby might also be of interest. No matter what academic library you visit, your research subject should be in the same call number range.

Tip: Not all books on a topic will be in the same section. Some topics may cross several disciplines and be shelved in different areas. For example, "women artists" might be located under women's studies, fine arts, history, and more, so check multiple sections.

Where to Find a Call Number

Once you locate a book in SCAD Libraries' online catalog, the call number will help you find it on the shelf. The call numbers are arranged alpha-numerically.

In the Catalog

image containing "Dogs" by Tim Flach catalog entry with call number highlighted

On the Spine of a Book

Image containing books on shelf with call numbers displayed on their spine

Tip: Shorter books may have their call number in the bottom left-hand corner of the cover instead of the spine

The Anatomy of a Call Number

The first two lines describe the subject of the book.

SF 426 = Dogs

The third line often represents the author's last name or the authoring institution's name.

A53 = American Kennel Club

The last line represents the date of publication.

2010

Image containing text outline the lines of a call number