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International Baccalaureate (IB) and Advanced Placement Students: How are Books in the Connelly Library Organized

Connelly Catalog


Library of Congress Classification

How Are Books Organized?

Library of Congress Classification

  • The Library of Congress classification system organizes books by broad subject area.
  • Each item is assigned a call number, which is like the book's address.
  • Each call number begins with a letter or multiple letters, followed by numbers and additional combinations
  • Sample Call Number: PE 1199.H33 2006
  • The beginning letters of a call number represent a broad subject area (i.e., PE1199 is "English language")