Gotham Book Mart Collection (University of Pennsylvania) 47,320
United States Congress 18,299
United States 18,255
Harris Collection of American Poetry and Plays (Brown University) Poetry, 1951-1975 17,911
De Gruyter 17,792
ebrary, Inc 17,774
Horace Howard Furness Memorial Library (University of Pennsylvania) 17,621
Shakespeare, William, 1564-1616 15,746
Harris Collection of American Poetry and Plays (Brown University) Poetry, 1976-2000 14,733
Culture Class Collection (University of Pennsylvania) 11,692
St. Martin's Press/Tor Archive (Brown University) 11,446
Harris Collection of American Poetry and Plays (Brown University) Poetry, 2001-2025 10,498
Fiske Icelandic Collection 8,158
Harris Collection of American Poetry and Plays (Brown University) Poetry, 1926-1950 7,943
ProQuest (Firm) 7,127
Linckesche Leihbibliothek 6,872
Harris Collection of American Poetry and Plays (Brown University) Poetry, 1901-1925 6,766
Harris Collection of American Poetry and Plays (Brown University) Collections and Anthologies 6,629
American Culture Class Collection (University of Pennsylvania) 6,239
Rosengarten Family Fund 6,196
Comics Collection (University of Pennsylvania) 5,824
Harold Jantz Collection of German Baroque Literature and German Americana 5,760
Warner Home Video (Firm) 5,654
Sallie Bingham Center for Women's History and Culture 5,308
Harris Collection of American Poetry and Plays (Brown University) Poetry, 1609-1875 5,283
Julio Mario Santo Domingo Collection 5,262
Goethe, Johann Wolfgang von, 1749-1832 4,898
Alumni and Friends Memorial Book Fund 4,449
Harris Collection of American Poetry and Plays (Brown University) Poetry, 1876-1900 4,426
Duke University Library. Lanson Collection 4,375
Committee on Institutional Cooperation 4,335
Indiana University Digital Library Program 4,271
Cicero, Marcus Tullius 4,241
Caroline F. Schimmel Collection of Women in the American Wilderness (University of Pennsylvania) 4,152
Steven Rothman Collection of Comics, Cartoons, and Graphic Novels (University of Pennsylvania) 4,013
English Culture Class Collection (University of Pennsylvania) 3,775
Dante Alighieri, 1265-1321 3,709
Dickens, Charles, 1812-1870 3,650
Edwin and Terry Murray Collection (David M. Rubenstein Rare Book & Manuscript Library) 3,591
David E. Pingree Collection (Brown University) 3,530
NetLibrary, Inc 3,378
Homer 3,241
Harris Collection of American Poetry and Plays (Brown University) Plays, 1976-2000 3,191
Twentieth Century Fox Home Entertainment, Inc 3,158
Leonard L. Milberg Collection of American Poetry 3,150
Adam Matthew Digital (Firm) 3,143
ProQuest ebook central 3,116
Harris Collection of American Poetry and Plays (Brown University) Plays, 1926-1950 3,114
Virgil 3,103
Cervantes Saavedra, Miguel de, 1547-1616 3,088
Harris Collection of American Poetry and Plays (Brown University) Plays, 1901-1925 3,083
Criterion Collection (Firm) 3,052
Horace Howard Furness Memorial Fund 2,951
Parke-Bernet Galleries 2,942
Lisa Unger Baskin Collection (David M. Rubenstein Rare Book & Manuscript Library) 2,926
Shou du tu shu guan 2,903
Qing Menggu Che wang fu cang qu ben bian ji wei yuan hui 2,895
Beijing gu ji chu ban she 2,894
Katzoff Collection (Brown University) 2,870
Harris Collection of American Poetry and Plays (Brown University) Plays, 1951-1975 2,825
Scott, Walter, 1771-1832 2,728
Horace 2,679
Euripides 2,632
Pillar Collection (Brown University) 2,525
Penn Sexuality Collection (University of Pennsylvania) 2,519
Project Muse 2,498
Clements C. Fry Collection of Medical Prints and Drawings (Yale Medical Library, Historical Library) 2,491
Lovecraft Collection (Brown University) 2,464
Metro-Goldwyn-Mayer 2,451
Ovid, 43 B.C.-17 A.D. or 18 A.D 2,446
Milton, John, 1608-1674 2,427
Kipling, Rudyard, 1865-1936 2,329
Stevenson, Robert Louis, 1850-1894 2,328
Joanna Banks Collection of African American Books (University of Pennsylvania) 2,321
Twentieth Century-Fox Film Corporation 2,237
Molière, 1622-1673 2,234
Aristotle 2,227
Leona Bowman Carpenter Collection of English and American Literature 2,208
Collection of British and American Fiction, 1660-1830 (University of Pennsylvania) 2,203
Sophocles 2,195
EBSCOhost 2,159
Samuel R. Delany Library (Beinecke Rare Book and Manuscript Library) Reading Library 2,155
Terry Belanger Collection 2,153
Paramount Pictures Corporation 2,136
Gift of the William Way LGBT Community Center (University of Pennsylvania) 2,130
WPA Film Library 2,123
Mark B. Adams Science Fiction Collection (University of Pennsylvania) 2,121
Twain, Mark, 1835-1910 2,120
Anne and Joseph Trachtman Memorial Book Fund 2,087
Tolstoy, Leo, graf, 1828-1910 2,075
Gay Pulp Fiction (Brown University) 2,046
Balzac, Honoré de, 1799-1850 2,038
Wordsworth Collection 2,037
Hugo, Victor, 1802-1885 1,987
Johnson, Samuel, 1709-1784 1,985
Harris Collection of American Poetry and Plays (Brown University) Plays, 2001-2025 1,932
Voltaire, 1694-1778 1,880
Laura Jan Meyerson Poetry Fund 1,878
James, Henry, 1843-1916 1,870
Schiller, Friedrich, 1759-1805 1,860