Book 27,457 Government Document 1,727 Serial 440 Journal 439 Conference Proceeding 419 Map 218 Reference Material 215 Photo 189 Electronic 184 Thesis 176 Unknown 171 Book Chapter 89 Kit 76 Manuscript 47 Physical Object 7 Audio 2 Musical Score 1 Newspaper 1 see all ...

N - Fine Arts 8,051 F - General American History 6,378 D - World History 5,363 T - Technology 906 E - United States History 655 H - Social Science 421 K - Law 333 G - Geography, Anthropology, Recreation 279 C - Historical Sciences 206 P - Language and Literature 192 Z - Library Science 155 A - General Works 143 B - Philosophy, Psychology, Religion 119 S - Agriculture 85 L - Education 72 U - Military Science 66 M - Music 54 J - Political Science 33 Q - Science 30 R - Medicine 27 V - Naval Science 27 see all ...

United States National Park Service 470 New York (N.Y.) Landmarks Preservation Commission 379 Historic American Buildings Survey 274 National Trust for Historic Preservation in the United States 231 United States National Park Service. Preservation Assistance Division 183 English Heritage 118 National Trust (Great Britain) 116 United States Advisory Council on Historic Preservation 101 Welsh, Frank S 99 Rhode Island Historical Preservation Commission 91 Royal Commission on Historical Monuments (England) 90 Pevsner, Nikolaus, 1902-1983 87 Historic Structures Reports Collection (Athenaeum of Philadelphia) 86 Historic American Buildings Survey/Historic American Engineering Record 67 United States National Park Service. Technical Preservation Services Branch 61 Gotham Book Mart Collection (University of Pennsylvania) 59 National Register of Historic Places 56 George Clapp Vaillant Book Fund 53 United States Office of Archeology and Historic Preservation 49 Pevsner, Nikolaus, Sir, 1902- 47 United States National Park Service. Southeast Regional Office. Cultural Resources Division 45 United States Congress. Senate. Committee on Energy and Natural Resources 43 Landesamt für Denkmalpflege Hessen 42 New Zealand Historic Places Trust 42 United States National Park Service. Denver Service Center 41 Unesco 39 United States Department of the Interior 39 United States National Park Service. Technical Preservation Services Division 39 Colonial Williamsburg, Incorporated 38 Library of Congress 38 see all ...

English 20,016 German 1,956 Italian 1,514 French 1,482 Spanish 1,087 Russian 903 Chinese 882 Korean 326 Portuguese 300 Dutch 278 Polish 249 Arabic 196 Czech 154 Turkish 143 Japanese 136 Indonesian 123 Persian 123 Ukrainian 106 Swedish 75 Hungarian 68 Hebrew 67 Romanian 56 Danish 55 Catalan 50 Greek 49 Croatian 38 Slovak 38 Urdu 34 Multiple 32 Norwegian 32 see all ...

History 6,113 Pictorial works 4,720 Guidebooks 2,065 Illustrated works 1,826 Biography 1,652 Biographies 1,335 Congresses 695 Local history 663 Periodicals 647 Conference papers and proceedings 450 Catalogs 371 Exhibitions 317 Maps 282 Designs and plans 279 Tours 249 Electronic books 240 Ouvrages illustrés 224 Bibliography 220 Directories 218 Exhibition catalogs 204 Viewbooks 202 Architectural drawings 176 Photomechanical prints 170 illustrated books 144 Genealogy 129 Handbooks, manuals, etc 127 Case studies 111 Guides touristiques 96 travel guidebooks 96 Bibliographies 88 see all ...

20th century 871 19th century 611 1900-1999 267 18th century 165 1800-1899 121 21st century 101 1900 - 1999 96 Colonial period, ca. 1600-1775 94 1867-1959 81 1800-1999 74 17th century 64 Revolution, 1775-1783 63 20e siècle 55 Geschichte 50 19e siècle 43 16th century 41 1800 - 1899 41 1809-1865 39 1732-1799 37 To 1500 36 1800 - 1999 34 2000-2099 33 To 1775 26 1700-1799 25 To 1900 24 1600-1775 22 1951- 19 1775-1783 18 1939-1945 18 1945- 18 see all ...

United States 2,366 New York (State) 1,698 England 1,655 Italy 1,485 Pennsylvania 1,322 Germany 1,279 France 989 New York 984 China 849 Massachusetts 810 Great Britain 756 Russia (Federation) 727 New York (N.Y.) 718 Philadelphia 688 Virginia 675 California 607 New Jersey 404 London 379 Spain 367 Scotland 359 Maryland 341 Australia 340 Illinois 340 Paris 309 Korea (South) 307 North Carolina 299 Rhode Island 295 Philadelphia (Pa.) 278 Mexico 274 London (England) 273 see all ...