Library of Congress ClassificationLibrary of Congress Classification

Library of Congress Classification System

The Mount Aloysius College Library catalog, like those at most other institutions of higher education, uses the Library of Congress Classification (L. C.) System.  This system is known as an alpha - numeric system, i.e. categories of knowledge are assigned letters of the alphabet.  Numbers follow letters in call numbers cataloged in the L.C. system.

The Juvenile Collection in the Mount Aloysius College Library is an exception as it is cataloged using the Dewey Decimal System that is common to most public libraries.

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. 

• A -- GENERAL WORKS
• B -- PHILOSOPHY. PSYCHOLOGY. RELIGION
• C -- AUXILIARY SCIENCES OF HISTORY
• D -- WORLD HISTORY & HISTORY OF EUROPE, ASIA, AFRICA, AUSTRALIA, NEW ZEALAND, ETC.
• E -- HISTORY OF THE AMERICAS
• F -- HISTORY OF THE AMERICAS
• G -- GEOGRAPHY. ANTHROPOLOGY. RECREATION
• H -- SOCIAL SCIENCES
• J -- POLITICAL SCIENCE
• K -- LAW
• L -- EDUCATION
• M -- MUSIC AND BOOKS ON MUSIC
• N -- FINE ARTS
• P -- LANGUAGE AND LITERATURE
• Q -- SCIENCE
• R -- MEDICINE
• S -- AGRICULTURE
• T -- TECHNOLOGY
• U -- MILITARY SCIENCE
• V -- NAVAL SCIENCE
• Z -- BIBLIOGRAPHY. LIBRARY SCIENCE. INFORMATION RESOURCES (GENERAL)