Have you ever wondered how library books are assigned their places on the shelves?
Did you know that the call number -- the number placed on the spine of the book
-- is a code which provides valuable information about the book?
This page will provide an introduction to understanding and using library call numbers.
|What are call numbers for?||Reading Call Numbers|
|Putting Call Numbers in Shelf Order||What does the call number mean?|
|Why is this important to know?|
Call numbers appear
Note that the same call number can be written from top-to-bottom,
The USAFA Academic "Cadet" Library uses Library of Congress Classification for call numbers. This system uses a combination of letters and numbers to arrange materials by subjects.
|Title:||Squadron insignia of the United States Air Force Academy||The first two liines describe the subject of the book.|
|= Military Aeronautical Education & Training
= Cadet uniforms
|Author:||Sheridan, P. Michael.||.S48||This line often represents the author's last name.|
|Call number:||UGB 859 .S48 1990||1990||= The year the book was published|
Since Library of Congress Classification arranges materials by subjects, knowing the letter(s) for your subject area gives you a place to start browsing the shelves. Which letters represent your subject? View the Library of Congress Classification Table.
For more information about call numbers and finding library materials, ask a librarian.