Warner Library uses the Library of Congress Classification System to organize books, meaning they are organized from A-Z based on their subject. Here are some section of the library that are related to Theatre:
PN
PN 1560-1590: The Performing Arts
PN 1600-1988: Drama
PN 2000-3307: Dramatic Representation: The Theater
PN 6110.5-6120: Collections of General Literature Drama
The PN section is located on the library's lower level. Please ask a library clerk or a librarian for further assistance.