Book 4,535,194 Electronic 99,656 Unknown 72,615 Thesis 71,787 Conference Proceeding 50,596 Journal 34,491 Serial 32,149 Kit 28,075 Government Document 26,949 Manuscript 14,306 Photo 10,701 Map 6,946 Audio 6,506 Book Chapter 5,974 Musical Score 3,247 Newspaper 2,697 Reference Material 1,745 Physical Object 439 Article 259 see all ...

D - World History 1,191,486 H - Social Science 365,850 P - Language and Literature 341,337 L - Education 332,348 B - Philosophy, Psychology, Religion 305,158 F - General American History 254,523 N - Fine Arts 169,449 E - United States History 112,753 J - Political Science 99,676 G - Geography, Anthropology, Recreation 87,181 Z - Library Science 82,805 K - Law 66,074 T - Technology 63,555 Q - Science 50,194 M - Music 49,935 C - Historical Sciences 49,594 R - Medicine 43,256 U - Military Science 37,442 A - General Works 35,483 S - Agriculture 21,635 V - Naval Science 12,449 see all ...

United States Congress 262,184 Great Britain Parliament. House of Commons 141,873 United States Congress. House 53,783 United States Congress. House. Committee on Invalid Pensions 25,682 United States Congress. Senate. Committee on Pensions 24,749 ebrary, Inc 19,780 United States Congress. House. Committee on Claims 19,083 De Gruyter 18,711 United States Congress. Senate. Committee on Claims 15,392 United States Congress. House. Committee on the Judiciary 15,041 United States Congress. Senate. Committee on the Judiciary 13,594 Culture Class Collection (University of Pennsylvania) 11,162 United States Congress. House. Committee on Military Affairs 10,556 United States Congress. House. Committee on Appropriations 9,796 ProQuest (Firm) 9,184 United States Congress. House. Committee on War Claims 8,468 Films for the Humanities & Sciences (Firm) 8,336 United States Congress. Senate. Committee on Military Affairs 8,063 Films Media Group 7,998 Anne S.K. Brown Military Collection 7,878 England and Wales Parliament 7,676 Adam Matthew Digital (Firm) 7,227 United States War Department 6,637 United States Congress. Senate. Committee on Commerce 6,163 United States Department of the Treasury 6,115 Gotham Book Mart Collection (University of Pennsylvania) 5,944 Horace Howard Furness Memorial Library (University of Pennsylvania) 5,693 United States Congress. House. Committee on Public Lands 5,595 United States Congress. House. Committee on Interstate and Foreign Commerce 5,406 England and Wales Sovereign (1625-1649 : Charles I) 5,099 see all ...

English 2,213,618 French 432,185 German 417,439 Spanish 305,150 Chinese 289,601 Italian 215,393 Russian 206,894 Japanese 153,081 Arabic 93,310 Portuguese 66,351 Polish 65,633 Korean 56,696 Latin 55,818 Hebrew 43,580 Turkish 43,531 Dutch 39,866 Greek 27,472 Ukrainian 27,171 Persian 26,731 Czech 21,824 Hungarian 17,478 Swedish 17,142 Vietnamese 13,476 Romanian 12,787 Bulgarian 11,982 Danish 11,175 Catalan 10,831 Indonesian 10,660 No linguistic content 9,541 Croatian 9,514 see all ...

History 2,192,668 Sources 395,773 Biography 298,946 Biographies 171,604 Electronic books 137,159 Private bills 111,974 Legislative bills 111,957 Early works to 1800 108,556 Criticism, interpretation, etc 100,648 Congresses 99,191 Fiction 86,494 Pictorial works 75,980 Conference papers and proceedings 68,759 Periodicals 54,373 Bibliography 54,353 Exhibitions 51,654 Early works 47,303 Catalogs 44,441 Personal narratives 39,444 Church history 35,666 Exhibition catalogs 34,260 Dictionaries 26,496 Bibliographies 24,825 Broadsides 21,578 Drama 21,153 Military history 21,134 Anecdotes 20,779 Poetry 19,641 Correspondence 18,829 Interviews 18,021 see all ...

20th century 617,947 19th century 295,858 1900-1999 218,700 18th century 108,408 21st century 90,383 17th century 79,382 1900 - 1999 73,330 Civil War, 1861-1865 71,107 1800-1899 67,430 16th century 47,564 Revolution, 1789-1799 46,954 20e siècle 40,185 Revolution, 1775-1783 39,995 To 1500 39,907 Civil War, 1642-1649 30,680 Early works to 1800 30,575 1700-1799 29,140 1800-1999 26,500 1939-1945 26,440 Revolution, 1917-1921 26,013 2000-2099 25,224 1945- 24,606 1800 - 1899 23,807 Colonial period, ca. 1600-1775 22,774 1600-1699 17,550 1861-1865 17,055 Civil War, 1936-1939 16,819 1933-1945 16,584 1789-1799 15,845 19e siècle 15,346 see all ...

United States 622,130 Great Britain 381,839 China 261,981 France 254,661 Germany 196,690 Italy 157,540 Japan 128,596 Europe 117,011 Spain 116,567 England 103,703 Soviet Union 85,174 Russia 71,232 Russia (Federation) 64,716 Poland 62,472 India 59,349 Turkey 58,809 Mexico 57,345 Greece 44,777 Rome 43,557 Korea 41,013 Brazil 40,251 Ukraine 34,754 Ireland 33,753 New York (State) 32,592 Netherlands 31,828 Egypt 31,559 Austria 29,943 Argentina 28,899 Iran 28,019 Middle East 26,522 see all ...