Call numbers are assigned to physical items in the Library and enable users to find (call) an item on the shelf. Call numbers are compiled from numbers or letters, or a combination of both. Call numbers are found on the spine of a book (or library item) and match the call number on the record of an item in the library catalog.
Nonfiction items are arranged according to subject using the Library of Congress' alphanumerical codes.
Fiction collections are arranged according to alphabetical codes.
Items are also arranged by format and genre. A prefix is used to identify different collections
Fiction: FIC + first four letters of the author's last name
Graphic novels: COMIC + first four letters of the author's last name
Reference: REF + LCC number
Documentaries: DVD + LLC number
Films: DVD + alphabetical code (abbreviation of title)
Test yourself: Library of Congress Call Number QUIZ