Subject Terms to try:
The Fitchburg State library uses the Library of Congress Classification System.
Call numbers begin with one or two letters and are organized alphabetically on the shelves. These letters describe the general subject of a book. (DS = History of Asia)
The second line is a number, which gives more detail on the specific subject matter of the item. This line is read numerically. (559.44 = Vietnamese Conflict)
The third line often represents the author's last name, and read as a decimal. (S = Smith)
The last line is the date of publication and is read chronologically. (1992)