Book 3,090,689 Unknown 63,783 Electronic 60,292 Conference Proceeding 46,138 Thesis 36,111 Journal 31,733 Serial 23,555 Kit 18,501 Government Document 17,282 Photo 10,389 Manuscript 10,120 Map 6,757 Audio 5,528 Musical Score 2,966 Book Chapter 2,908 Newspaper 2,629 Reference Material 1,522 Physical Object 294 Article 242 see all ...

D - World History 854,719 P - Language and Literature 280,190 H - Social Science 260,565 B - Philosophy, Psychology, Religion 211,051 F - General American History 184,340 L - Education 164,773 N - Fine Arts 124,211 E - United States History 83,975 J - Political Science 70,704 Z - Library Science 69,782 G - Geography, Anthropology, Recreation 66,238 K - Law 50,161 T - Technology 46,618 C - Historical Sciences 37,782 Q - Science 37,166 M - Music 34,728 R - Medicine 32,380 A - General Works 26,401 U - Military Science 25,495 S - Agriculture 14,979 V - Naval Science 8,811 see all ...

Great Britain Parliament. House of Commons 141,684 United States Congress 116,813 United States Congress. House 35,353 United States Congress. House. Committee on Invalid Pensions 25,186 United States Congress. Senate. Committee on Pensions 24,166 United States Congress. House. Committee on Claims 16,389 De Gruyter 14,429 United States Congress. Senate. Committee on Claims 13,896 United States Congress. House. Committee on the Judiciary 9,768 United States Congress. Senate. Committee on the Judiciary 9,726 Culture Class Collection (University of Pennsylvania) 9,411 Films for the Humanities & Sciences (Firm) 8,241 Films Media Group 7,992 United States Congress. House. Committee on War Claims 7,673 ebrary, Inc 7,077 England and Wales Parliament 6,857 United States Congress. House. Committee on Military Affairs 5,562 Gotham Book Mart Collection (University of Pennsylvania) 5,487 Horace Howard Furness Memorial Library (University of Pennsylvania) 5,241 Anne S.K. Brown Military Collection 5,058 England and Wales Sovereign (1625-1649 : Charles I) 4,441 Rosengarten Family Fund 4,251 Charles I, King of England, 1600-1649 4,205 United States Congress. Senate. Committee on Military Affairs 4,205 Alumni and Friends Memorial Book Fund 3,935 United States Congress. House. Committee on Pensions 3,674 Fiske Icelandic Collection 3,569 George Clapp Vaillant Book Fund 3,174 German Culture Class Collection (University of Pennsylvania) 3,060 Service Center for Chinese Publications 2,947 see all ...

English 1,563,711 French 303,837 German 283,089 Spanish 209,087 Chinese 202,871 Italian 144,143 Russian 139,409 Japanese 100,833 Arabic 56,018 Portuguese 45,176 Polish 43,685 Latin 43,090 Korean 42,273 Turkish 30,398 Hebrew 28,220 Dutch 27,031 Ukrainian 17,844 Persian 17,160 Greek 17,004 Czech 15,895 Swedish 11,494 Hungarian 11,032 Vietnamese 10,196 No linguistic content 9,351 Romanian 9,143 Indonesian 8,685 Danish 7,799 Catalan 7,635 Bulgarian 7,334 Ancient Greek 6,887 see all ...

20th century 482,634 19th century 240,242 1900-1999 214,641 18th century 85,149 1900 - 1999 70,691 21st century 68,536 1800-1899 66,352 17th century 64,383 Civil War, 1861-1865 51,179 Revolution, 1789-1799 37,696 16th century 37,417 20e siècle 37,149 To 1500 32,264 Revolution, 1775-1783 30,389 Early works to 1800 30,222 1700-1799 28,692 Civil War, 1642-1649 27,356 1800-1999 25,933 1939-1945 24,795 2000-2099 23,841 1800 - 1899 23,160 Revolution, 1917-1921 17,402 1600-1699 17,270 1945- 17,144 1861-1865 15,826 Colonial period, ca. 1600-1775 15,769 1789-1799 14,523 19e siècle 14,298 Civil War, 1936-1939 12,709 1933-1945 12,547 see all ...

United States 388,466 Great Britain 326,299 China 192,714 France 188,091 Germany 142,347 Italy 110,372 Europe 89,795 Japan 88,798 England 84,454 Spain 82,145 Soviet Union 59,870 Russia 49,480 Russia (Federation) 49,240 India 45,526 Poland 43,196 Turkey 41,838 Mexico 39,391 Rome 31,491 Korea 31,102 Greece 30,662 Brazil 28,536 Ireland 25,787 New York (State) 24,648 Ukraine 24,485 Netherlands 22,593 Middle East 21,867 Austria 21,722 Egypt 21,346 Argentina 21,237 Iran 19,096 see all ...