Book 846,866 Electronic 64,923 Serial 48,693 Unknown 34,704 Thesis 26,644 Government Document 21,502 Musical Score 18,320 Audio 13,745 Conference Proceeding 9,530 Journal 7,652 Photo 7,352 Manuscript 7,267 Kit 6,945 Map 3,652 Book Chapter 2,463 Reference Material 776 Newspaper 350 Physical Object 330 Article 44 see all ...

P - Language and Literature 130,703 H - Social Science 86,675 D - World History 62,484 B - Philosophy, Psychology, Religion 58,867 Q - Science 45,929 T - Technology 35,147 M - Music 31,749 R - Medicine 25,628 N - Fine Arts 22,459 K - Law 20,225 G - Geography, Anthropology, Recreation 19,682 Z - Library Science 18,824 L - Education 18,169 E - United States History 17,488 J - Political Science 17,433 F - General American History 17,263 S - Agriculture 7,892 C - Historical Sciences 7,280 A - General Works 6,286 U - Military Science 5,392 V - Naval Science 1,297 see all ...

Great Britain Parliament. House of Commons 10,797 De Gruyter 9,864 Culture Class Collection (University of Pennsylvania) 8,687 Harris Collection of American Poetry and Plays (Brown University) Broadsides 7,389 SpringerLink (Online service) 5,216 Anon 4,594 Adam Matthew Digital (Firm) 4,157 Gotham Book Mart Collection (University of Pennsylvania) 4,117 ebrary, Inc 3,993 United States Congress 3,679 Inter-university Consortium for Political and Social Research 3,494 United States Congress. House. Committee on Appropriations 2,706 German Culture Class Collection (University of Pennsylvania) 2,550 Granger, James, 1723-1776 2,436 Films for the Humanities & Sciences (Firm) 2,374 Films Media Group 2,271 Sallie Bingham Center for Women's History and Culture 2,137 Berenson Library Fototeca 2,135 Geological Survey (U.S.) 2,077 Horace Howard Furness Memorial Library (University of Pennsylvania) 2,018 American Culture Class Collection (University of Pennsylvania) 1,920 Shakespeare, William, 1564-1616 1,919 ProQuest (Firm) 1,912 English Culture Class Collection (University of Pennsylvania) 1,782 John Milton and Ruth Neils Ward Collection (Harvard Theatre Collection) 1,662 Lisa Unger Baskin Collection (David M. Rubenstein Rare Book & Manuscript Library) 1,584 United States Department of the Treasury 1,576 Henry Charles Lea Library (University of Pennsylvania) 1,559 ANON 1,520 Braunschweig (Duchy) 1,438 see all ...

English 759,359 German 71,771 French 44,155 Latin 24,794 Spanish 23,487 Dutch 18,136 Italian 14,039 No linguistic content 12,899 Hebrew 6,699 Russian 6,031 Arabic 6,025 Japanese 5,125 Chinese 4,081 Portuguese 3,520 Ancient Greek 3,502 Undetermined 2,973 Danish 1,766 Multiple 1,545 Korean 1,542 Swedish 1,455 Greek 1,378 Polish 1,297 Indonesian 1,216 Persian 1,119 Czech 1,068 Sanskrit 750 Hungarian 605 Yiddish 591 Hindi 589 Turkish 574 see all ...

History 76,435 Early works to 1800 71,706 Electronic books 71,218 Fiction 37,564 Periodicals 33,536 Biography 30,212 Early works 27,087 Biographies 23,609 Sources 21,877 Criticism, interpretation, etc 19,371 Poetry 17,010 Drama 15,410 Congresses 14,180 Publishers' advertisements 13,520 Broadsides 12,506 Academic theses 11,162 Scores 10,149 Conference papers and proceedings 9,428 Internet videos 9,066 Dictionaries 8,981 Feature films 8,378 Statistics 7,745 Novels 6,864 Advertisements 5,923 Video recordings 5,715 Sermons 5,507 Pictorial works 5,280 Corporation reports 5,269 Juvenile literature 5,255 Controversial literature 5,188 see all ...

20th century 45,581 19th century 31,330 Early works to 1800 26,787 1900-1999 18,569 17th century 16,425 18th century 15,141 21st century 10,912 1900 - 1999 6,881 1800-1899 6,724 16th century 5,658 2000-2099 5,015 Civil War, 1861-1865 4,024 20e siècle 3,771 1939-1945 3,668 1600-1699 3,246 1700-1799 2,967 1945- 2,915 Civil War, 1642-1649 2,753 1564-1616 2,355 To 1500 2,060 1989- 2,051 1800 - 1899 1,927 Revolution, 1775-1783 1,879 15th century 1,863 1800-1999 1,747 1861-1865 1,706 20e siècle 1,638 21e siècle 1,613 Since 1945 1,515 Colonial period, ca. 1600-1775 1,512 see all ...

United States 87,838 Great Britain 56,600 England 33,750 Germany 20,650 France 17,717 Europe 12,623 Italy 10,756 London 10,291 New York (State) 10,091 Massachusetts 8,105 China 7,031 Mexico 6,810 India 6,513 California 6,391 Netherlands 6,047 New York 5,952 Ireland 5,673 Canada 5,482 Japan 5,353 Spain 5,181 États-Unis 5,082 Scotland 5,050 Pennsylvania 4,798 Soviet Union 4,390 London (England) 4,163 Rome 3,862 Australia 3,605 Austria 3,187 Middle East 3,166 Russia 3,099 see all ...