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Instruction Tutorials

3a. Navigating the Library

3b. Searching the Library Catalog

3d. Limit by Catalog Only

3e. Library of Congress Classification Outline

Dupré Library organizes its books using the Library of Congress Classification Outline.

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.

Listed below are the letters and titles of the main classes of the Library of Congress Classification. Click on any class to view an outline of its subclasses.