The WSU Libraries arranges most of the books in its collection by Library of Congress call numbers. Though history is covered in every discipline (e.g., women's history may be located in the women's studies call numbers while the medical history may be in the medicine call numbers), the major sections for history are listed below.

Class D – World History (except American History)

• Subclass D – General History and Historiography
• Subclass DA – Great Britain
• Subclass DAW – Central Europe
• Subclass DB – Austria, Liechtenstein, Hungary, and Czechoslovakia 
• Subclass DC – France, Andorra, Monoco
• Subclass DD – Germany 
• Subclass DE – Greco-Roman World
• Subclass DF – Greece
• Subclass DG – Italy and Malta 
• Subclass DH – Low Countries – Benelux (Belgium, Netherlands, and Luxembourg)
• Subclass DJ – Netherlands (Holland)
• Subclass DJK – Eastern Europe (General)
• Subclass DK – Russia, the Soviet Union (and fomer Soviet Republics), and Poland
• Subclass DL – Northern Europe and Scandinavia 
• Subclass DP – Spain and Portugal
• Subclass DQ – Switzerland
• Subclass DR – Balkan Peninsula
• Subclass DS – Asia 
• Subclass DT – Africa
• Subclass DU – Oceania  (South Seas)
• Subclass DX – Gypsies

 Class E – History of America

• E 11 through E 49 – General works of a broad nature
• E 51 through E 73 – Pre-Columbian America
• E 75 through E 99 – Indians of North America
• E 101 through E 135 – Discovery, first encounters, and early explorations 
• E 141 through E 143  – Descriptive accounts from early eras until 1810
• E 151 through  E 900s – History of the United States

Class F – Local History of the United States

• F 1 through F 975 – United States local history, including:
  • F 206 through F 220 – History of the South and South Atlantic States
  • F 296 through F 301 – History of the Gulf States and West Florida
  • F 300 through F 320 – History of Florida
• F 1000 through F 1145 – British America/Canada
• F 1170 – French America
• F 1201through F3799  – Latin America

 For a more specific breakdown of the call numbers see the Library of Congress Classification Online.