Library Call Numbers

Facts about the Library of Congress Classification System (LCC)

• It is one of the most widely used library classification systems in the world.
• Most academic/university libraries use the Library of Congress Classification System; 
  most public libraries use the Dewey Decimal Classification System.
• LCC was designed to organize and arrange large collections of library materials.
• It uses letters and numbers to arranges items so they are grouped by subject.
• There are 21 main classes, each identified by a letter in the alphabet.
• LCC is expandable and new subclasses are added regularly.