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Call Numbers (Library of Congress Classification)

How to find books and other materials using their Library of Congress call numbers.

How to Read a Library of Congress Call Number

Video courtesy of the University of Arkansas Libraries

Tips for Reading Call Numbers

When reading a call number there are a few important things to consider:
  • Call numbers will be listed horizontally on the resource's spine and should be read from top to bottom.
  • Books are arranged alphabetically. Stand-alone numbers will come before any pairs, for example, N comes before NA.
  • Numbers follow the letters. These numbers should be read as a decimal, for example, N410 .B359 2015 comes before N410 .B42 2007
  • The last number of the call number indicated the edition or year of publication. for example, N410 .B359 2015 was published in 2015.

 

Image with text examples of call numbers in alphanumerical order