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Understanding Call Numbers

Find books on the shelves more quickly with this quick overview of how to read Library of Congress call numbers.

Call Number Information

The Library of Congress Classification system arranges materials by subject. The first sections of the call number represent the subject. The letter-and-decimal section of the call number often represents the author's last name. The last section of a call number is often the date of publication.

example:

Title: The guide to learning and study skills:
for higher education and at work


Author: Drew, Sue


Call Number: LB2395 .D739 2010

Find your call number using a map.