Answered By: Wendy Diamond
Last Updated: Jun 28, 2018     Views: 79

Main Collection books, Reference, and bound Periodicals are shelved according to the Library of Congress (LC) call number system. Main Collection books are located on the third floor of the library. Each group of stacks is marked with a sign indicating the call number range for that section. Reference, Periodicals, and Theses also use LC call numbers, but Government Documents and Juvenile books use different systems. 

Books are shelved in order according to the Library of Congress Classification call number system. The call number is composed of both letters and numbers. The first letter(s) and number(s) refers to the subject content of the work. The second combination of letters and numbers usually refers to the author or a detailed subject. 

In the catalog, call numbers are listed on one line B1 A25.  The second part is read as a decimal so B1 A25 comes before B1 A8. On the book spine, read the numbers from top to bottom. Some call numbers may display decimals in the third line while other may not, but this does not effect shelving; sometimes there is a year of publication in the call number. For example:

B  B   BBBBBB
11186868686.286.2
A25*.A8A86.K57K7K8.A24A3
1986

*A25 comes before A8. From the third line onward, read the numbers decimally.

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