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Reading a Call Number

How to Read a Library Call Number

Libraries use a classification system to arrange items so that the same topics are shelved together. Most academic libraries use a system called “The Library of Congress Classification System” or LC.

Each call number is composed of several parts or lines. For example, consider the call number TK7881.6 M29 1993 Our call number will be formatted a little differently, depending on where you see it:

 Reading a Call NumberReading a Call Number