"> Skip to Main Content Site Map

THEA 1100 Theatre Appreciation: How to Find a Play in the Library

Created for THEA 1100.

Search for books in the library catalog

Find books on the shelf

Find a Play in the Library

The Roberts Library uses the Library of Congress classification system to arrange books on our shelves.

The first two lines describe the subject of the book.  The third line often represents the author's last name. The last line represents the date of publication.

Illustration showing the call number on the spine of a book and on a computer screen


Tips for Finding Books on the Shelf

Call number 'LB 2395 .C65 1991' on the spine of a book and in the online catalog

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...