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Student Employees: Library of Congress Classification

LoC History

The Library of Congress Classification (LCC) is a classification system that was first developed in the late nineteenth and early twentieth centuries to organize and arrange the book collections of the Library of Congress. Over the course of the twentieth century, the system was adopted for use by other libraries as well, especially large academic libraries in the United States. It is currently one of the most widely used library classification systems in the world. The system divides all knowledge into twenty-one basic classes, each identified by a single letter of the alphabet. Most of these alphabetical classes are further divided into more specific subclasses, identified by two-letter, or occasionally three-letter, combinations.
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Video Tutorial

Shelving Practice

Use this tutorial to learn more about the Loc Classification system and practice putting titles in order. Page four of the tests can be very difficult, don't be afraid to ask for help!

LoC Classes

Library of Congress Class image

A further breakdown can be found on the Library of Congress website