The Library of Congress Classification System (LC)
LC call numbers
Phillips Library uses the LC classification system to maximize effeciencies in processing materials. The LC classification system is a complex schema using letters and numbers to create a shelf location (call number). The resulting shelf arrangement allows you to browse subject areas of the book shelves; you find one book in the catalog on a topic, go to the shelf, and there should be similar books contiguously shelved.
From WorldCat Discovery to the Shelf
When searching WorldCat, note call numbers and availability for each item in results lists.
Sometimes the same book is available as an ebook and printed book. When you see the Other Editions & Formats link, use it!
Note: Only print books have shelf location numbers associated with them.
Anatomy of a Library of Congress Classification Number
Book title: Uncensored War: The Media and Vietnam
Author: Daniel C. Hallin
Call Number: DS559.46 .H35 1986
The first two lines describe the subject of the book.
DS559.45 = Vietnamese Conflict
The third line often represents the author's last name.
H = Hallin
The last line represents the date of publication.
Tips for Finding Books on the Shelf
Read call numbers line by line.
Read the first line in alphabetical order:
A, B, BF, C, D... L, LA, LB, LC, M, ML...
Read the second line as a whole number:
1, 2, 3, 45, 100, 101, 1000, 2000, 2430...
The third line is a combination of a letter and numbers. Read the letter alphabetically. Read the number as a decimal, eg:
.C65 = .65 .C724 = .724
Some call numbers have more than one combination letter-number line.
The last line is the year the book was published. Read in chronological order:
1985, 1991, 1992...
Here is a shelf of books with the call number order explained.