A call number, like an address, tells where the item is located in the library. The Mason Libraries uses the Library of Congress (LC) Call Number system to organize materials on the same topic together. Each item begins with capital letter(s) followed by numbers. Use the item’s location and call number to find the title on the shelf.
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We have a downloadable and printable copy of this handout available for your use.
Additional Questions and Help
If you tried to use this diagram and continue to have problems identifying what kind of sources you are working with, you could try asking a librarian or coming to a service desk for help.
How to Read a Call Numberis licensed under a Creative Commons Attribution 4.0 International License.