Material Types:

Image (499,363)Open Access Book (159,872)Primary Source (118,708)Public Domain Book (87,116)Map (21,198)Interactive Simulation (12,811)Audiobook (12,625)Video (8,401)Course Material (5,582)Course (4,832)Lesson Plan (4,357)Case (4,072)Textbook (3,320)Learning Object (2,369)Podcast (468)Casebook (257)Module (172)

Sources:

J. Paul Getty Museum (147,238)Library of Congress (118,735)Library of Congress - Images (111,258)Project Gutenberg (86,809)Oxford Text Archive (63,953)National Gallery of Art (52,342)Yale Center for British Art (50,278)Tate Modern (44,742)Art Institute of Chicago (42,080)Directory of Open Access Books (36,469)Los Angeles County Museum of Art (25,005)Library of Congress - Maps (21,198)Arabic Collections Online (14,688)OAPEN (13,801)Morgan Library and Museum (13,041)Librivox (12,625)Open Research Library (12,551)Wolfram Demonstrations (12,460)World Digital Library - Images (9,491)JSTOR Open Access Books (6,709)TED Talks (4,820)CTE ONLINE (4,357)H2O - Harvard University Law Cases (4,072)Project Muse Open Access Books (3,714)MIT OpenCourseWare (3,273)National Portrait Gallery (2,745)Phet - Activities (2,513)Open Knowledge Repository (2,503)Wisc-Online (2,369)TEDEd (2,276)World Digital Library - Books (2,195)FreeTechBooks (1,214)QUBES (1,142)CUNY Academic Works (884)Open Textbook Library (847)Dickinson College Commentaries - Images (772)iBiology (635)MetPublications (596)eCampus Ontario (582)BioInteractive (500)Teaching Commons - Textbooks (471)Library of Congress - Videos (441)University of Oxford Podcasts (388)Public Domain Review - Images (371)BC Campus (333)Public Domain Review - Books (307)LibreTexts - Courses (279)TU Delft OpenCourseWare (263)H2O - Harvard University Law Casebooks (257)University of Michigan Press (226)Getty Publications Virtual Library (220)Teaching Commons - Course Materials (196)LearnChemE (193)CORA - Community of Online Research Assignments (178)Achieving the Dream Courses (167)Phet - Interactive Simulations (158)MIT Press Open (157)Astronomy Education at UNL - Course Materials (151)Cornell Open (150)Public Domain Review - Films (140)John Hopkins Bloomberg School of Public Health (121)SUNY OER Catalog (116)Open Access Texts (115)LibreTexts (112)Noba (106)UCI Open (98)Saylor Academy (96)OPEN.ED @PSU (82)Open Course Library (81)Center for Computer-Assisted Legal Instruction - Podcasts (80)Penn State University Press (76)GALILEO Open Learning Materials (75)Open Michigan (72)NYU Press (71)Astronomy Education at UNL - Modules (66)Humanities Digital Library (66)American Institute of Mathematics (65)Center for Computer-Assisated Legal Instruction (63)ACLS Humanities E-Book (60)WayneOPEN (58)Purdue University Press (52)Washington University in St. Louis (51)UMass Boston OpenCourseWare (50)Brown University (50)OpenStax (50)Open Oregon (47)Northwestern Open (46)College of the Canyons (46)Whatcom Community College (42)E-International Relations (41)Open Yale Courses (40)Teaching Commons - Courses (40)Oregon State University (33)World Digital Library - Videos (32)Temple University Press (31)The Mind of the Universe: Open Source Science TV (30)Portland State University (29)Open SUNY Textbooks (26)Grand Valley State University (25)Ohio State University (25)Kwantlen Polytehnic University (23)Ryerson University (23)Boundless Courses (22)Syracuse Open (20)Rebus Community (19)University of North Dakota (19)LibreTexts - Course Materials (18)Granite State College (18)Oklahoma State University (18)Open Education Alberta (18)University of Kentucky (18)University of Saskatchewan (18)New Prairie Press - Kansas State University (17)Dickinson College Commentaries (16)Wesleyan University Press (16)University of Wisconsin - Madison (16)Penn State University (13)University of Texas at Arlington (13)Smarthistory (12)University of South Florida (12)University of Washington (12)Cleveland State University (11)Indiana University (10)TU Delft (10)Stanford Engineering Everywhere (9)Amherst College Press (9)Boise State University (9)University of Hawaii (9)University of Minnesota (9)Plymouth State University (8)University of Central Florida (8)College of DuPage (7)York University (7)Gettysburg College (6)University of Houston (6)Muhlenberg College (5)University of Arkansas (5)University of Massachusetts Amherst (5)Iowa State University (4)Pacific University Press (4)Trinity University (4)University of California, Berkeley (4)University of Southern Queensland (4)Virginia Commonwealth University (4)George Fox University (3)Michigan State University (2)Salt Lake Community College (2)Eastern Kentucky University (1)Ferris State University (1)Keene State University (1)Virginia Western Community College (1)Washington State University (1)

Subjects:

Law (5,761)Religion (5,034)History (4,768)Literature (4,180)Physics (1,539)Mathematics (968)Political (959)Sociology (897)Art and Art History (849)Medical and Health Sciences (845)Education (792)Social Sciences (756)Science & Technology (732)Language (714)Chemistry (680)Science, Technology, Engineering & Mathematics (534)Political Science (469)Biology (462)Philosophy (442)Psychology (424)Anthropology (381)Economics (379)Business (357)Electronics (321)Languages and Linguistics (310)Social Studies (295)Electrical Engineering and Computer Science (258)Astronomy (252)Management (248)Chemical Engineering (243)Health (222)Library and Information Science (215)Industrial Automation (211)Architecture (206)Technology (206)Manufacturing (193)Urban Studies and Planning (193)Design, Engineering & Technology (169)Science (155)Mechanical Engineering (154)Comparative Media Studies/Writing (147)Business, (126)General Works (114)Earth Sciences (108)Biochemistry (108)Civil and Environmental Engineering (108)Earth, Atmospheric, and Planetary Sciences (107)Art (99)Archaeology (98)Anatomy and Physiology (97)Computer Science (95)Brain and Cognitive Sciences (94)Geography. Anthropology. Recreation (89)Aeronautics and Astronautics (88)Machine Tool (87)Thinking & Learning (84)Earth and Mineral Sciences (82)Music (80)Ecology (74)Film and Media Studies (74)Music and Theater Arts (71)Communication (70)Engineering Systems (67)Engineering (66)International Relations (66)Science, Technology, and Society (66)Film (66)Agriculture (65)Linguistics (61)Materials Science and Engineering (60)Women's and Gender Studies (59)Information Technology (58)Evolution (58)Public (56)Humanities (51)Nuclear Science and Engineering (49)Media Arts and Sciences (48)Policy Studies (46)IT Networking (45)Fine Arts (44)Animal Sciences (43)Languages (43)Other (42)Physical Sciences (42)Finance (42)Multidisciplinary (40)Population (35)Geography (34)Music and Books on Music (34)Welding (34)Science, Technology, and Mathematics (33)Labor Studies (32)Computer Programming (32)Communication studies (31)English (30)General (30)Experimental Study Group (30)Creative Writing (29)Politics (29)Fiction (28)Theater and Performance Studies (28)Poetry (28)Ancient and Classical (26)Web Development (26)Edgerton Center (26)Cultural Studies (25)Information (24)Women's Studies (24)Environmental Science (24)People (24)Law, Public Safety, Corrections & Security (23)Feminist (23)IT Security (22)Jewish Studies (22)Transportation (22)Transportation, Distribution & Logistics (21)Ghosts & Occult (21)Environmental (20)Performing (20)Media Studies and Communications (20)Criminology (19)Data, Systems, and Society (19)International (19)Misc. (18)Gender (17)Student Success (17)Classical Studies (16)Labor (16)Space & The Future (15)Biological (15)Demography (15)Democracy and Human Rights (14)Career Skills (14)Travel & Exploration (14)Political Theory (14)Library (14)Film, Theater, and Performing Arts (14)Race and Ethnicity (12)Writing & editing guides (12)Environmental, Earth, and Ocean Sciences (12)Geosciences (12)Design & Typography (12)Natural Sciences (12)Rhetoric, Composition, and Writing (12)IT Database (11)Wisdom (11)Urban Sociology (11)Dance (10)Workforce (10)Customs & Culture (10)Humour & Satire (10)Natural World (10)Novelty (10)Development (10)Peace (10)Number Systems (9)Death (9)Folklore (9)African American and African Diaspora Studies (9)Communications (8)Geology (8)IT Support (8)American Studies (8)Stories (8)Cultural (8)Pragmatism (8)Accounting (7)Human Services (7)Trigonometry (7)Social Ecology (7)The 'Other' (7)Bibliography (7)Museum Studies (7)Liberal Studies (7)Gender Studies (6)Military Science (6)Public Health Resources (6)Foundational IT Skills (6)Marketing (6)Science Practices (6)Comparative Politics (6)Gender & Women’s Studies (6)Public Health (6)Translation Studies (6)Drama (5)Social work (5)Concourse (5)Sport (5)Computer (5)Latin American and Caribbean Studies (5)Urban (5)Area and Ethnic Studies (4)LGBT Studies (4)Nursing Resources (4)Public Policy Resources (4)Interpersonal communication & skills (4)Microeconomics (4)Theatre studies (4)Veterinary Medicine (4)Crime (4)Love (4)Strange Phenomena (4)Literary Studies (4)Botany (4)Landscape Architecture (4)Deaf and Disability Studies (4)Native American and Indigenous Studies (4)Statistics (4)Medieval and Renaissance Studies (4)Media Studies (4)Social (4)ES (3)Arts, Audio/Video Technology & Communications (3)African American Studies (3)Electrical engineering (3)Environmental Studies (3)Politics & government (3)Research methods: general (3)Fashion (3)Sex (3)Zoology (3)Garden (3)Methodology (3)Photography (3)Social Aspects (3)Korea (3)Web programming (3)Publishing & book trade (3)Naval Science (2)Sociology of Religion (2)Nursing (2)Study & learning skills: general (2)Israeli Studies, Jewish Studies (2)Usage & grammar guides (2)Web graphics & design (2)Computational biology / bioinformatics (2)Critical and Creative Thinking (2)Physics: Fluid mechanics (2)Landscapes (2)Maps (2)Military (2)Latin (2)Canadian Studies (2)American (2)Ancient Studies and Classics (2)Local and Regional (2)Aquatic (2)Middle Eastern Studies (2)Paleontology (2)German Studies (2)Children's Studies (2)Book History and Print Culture (2)Design (2)Gender studies: women & girls (2)Public health & preventive medicine (2)Public finance accounting (2)Physics Resources (1)Medicine & Nursing (1)Tema principal Guías gramaticales y de uso (1)Careers guidance (1)Co (1)College Success (1)Engineering graphics & draughting / technical drawing (1)Forests & woodland (1)GE (1)Information retrieval & access (1)Literacy (1)Metals technology / metallurgy (1)Microsoft programming (1)Nursing specialties (1)Oceanography (1)Other manufacturing technologies (1)Public relations (1)Security, safety & protection skills / professions (1)Spreadsheet software (1)Cultural Studies, Detroit (1)Earthquake engineering (1)Folklore, Israeli Studies, Jewish Studies (1)Folklore, Jewish Studies (1)Folklore, Maritime Studies (1)Government & Public Administration (1)Great Lakes, Maritime Studies (1)Great Lakes, Maritime Studies, Michigan (1)Hospitality & Tourism (1)Hydraulics / Pneumatics (1)International law, transport & commerce: maritime law (1)Israeli Studies, Music (1)Literary studies: plays & playwrights (1)Michigan, Upper Peninsula (1)Translation & interpretation (1)Gay & Lesbian studies / LGBTQ studies (1)Law: wills, probate, succession (1)Classics (1)Critical Reading and Writing (1)First Year and Intermediate Seminar (1)Geology and Geophysics (1)Graphical & digital media applications (1)Labs & Demos (1)Performing Arts (1)Public Policy (1)Regional, state & other local government (1)Systems analysis & design (1)Electric motors (1)Legal aspects of criminology (1)Drugs (1)Emotion and Expression (1)Food (1)Plays, playscripts (1)Work (1)Rural Sociology (1)Biographies and Memoirs (1)Statistics, (1)Native American Literature (1)French Studies (1)Children's Literature (1)Asian and Pacific Studies (1)Publishing (1)African (1)Astronomy, (1)Gerontology (1)Journalism (1)Bioethics (1)Food Studies (1)Archeology (1)Gender & Sexuality Studies (1)Information theory (1)Science: general issues (1)Insects (entomology) (1)User interface design & usability (1)Engineering: general (1)Peace studies & conflict resolution (1)Engineering thermodynamics (1)Human trafficking (1)Forestry industry (1)Cultural & media studies (1)Media studies: journalism (1)Tema principal Literatura comparada (1)Regional studies (1)Secretarial, clerical & office skills (1)Computer security (1)News media & journalism (1)Soil science & management (1)Building construction & materials (1)Production & industrial engineering (1)Management decision making (1)Film and TV (1)Primary Subject (1)General cookery & recipes (1)Performance art (1)Urban Studies (1)Films, cinema (1)Climate change (1)Social geography (1)Freedom of information law (1)Management: leadership & motivation (1)Information Management (1)Sales & marketing (1)Primary Subject Psychology (1)Media, entertainment, information & communication industries (1)Ancient, classical & medieval texts (1)Speculative fiction (1)Commercial law (1)Desktop publishing (1)

Usage Rights:

Public Domain (616,522)Attribution-NonCommercial-NoDerivs (73,604)Attribution-ShareAlike (66,127)Open Access (52,342)Attribution-NonCommercial-ShareAlike (29,632)Attribution (12,534)Attribution-NonCommercial (6,055)CC0 (2,745)Attribution-NoDerivs (867)ANU Press (568)All Rights Reserved (21)University of Adelaide Press (21)Attribution-ShareAlike (16)Firenze University Press (12)Free Documentation License (GNU) (11)No Rights Reserved (3)Atribución NoComercial CompartirIgual (1)Atribución (1)

Languages:

English (22,478)Arabic (14,700)German (9,753)French (7,573)Portuguese (2,253)Spanish (2,052)Italian (974)Dutch (769)Norwegian (140)Russian (101)Finnish (84)Danish (63)Catalan (52)Swedish (39)Lithuanian (23)Slovenian (20)Latin (16)Afrikaans (15)Chinese (12)Czech (12)Greek (10)Polish (8)Bulgarian (7)Turkish (7)Albanian (6)Welsh (4)Tamil (4)Croatian (4)Hindi (4)Japanese (3)Ancient Greek (3)Slovak (2)Kinyarwanda (2)En (2)Hebrew (1)Ladino (1)Ukrainian (1)Chechen (1)

945,523 results found

Open Access Book
Open Access Book image
L'industrie invisible : Les draperies du Midi xviie - xxe siècles - Essai sur l'originalité d'une trajectoire
Author: Jean-Michel Minovez
Source: Directory of Open Access Books
Publication Date: 2012
View Open Access Book
Share
Open Access Book
Open Access Book image
Indices Librorum, II : Catalogues anciens et modernes de manuscrits médiévaux en écriture latine. Sept ans de bibliographie (1984-1990) et compléments pour 1977-1983
Author: Pierre Petitmengin, François Dolbeau
Source: Directory of Open Access Books
Publication Date: 1996
View Open Access Book
Share
Open Access Book
Open Access Book image
A indexação de livros: a percepção de catalogadores e usuários de bibliotecas universitárias. Um estudo de observação do contexto sociocognitivo com protocolos verbais
Author: Fujita, Mariângela Spotti Lopes, Rubi, Milena Polsinelli, Boccato, Vera Regina Casari, Gonçalves, Maria Carolina
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2009
View Open Access Book
Share
Open Access Book
Open Access Book image
La influencia de León Duguit en la reforma social de 1936 en Colombia : el sistema jurídico, la función social de la propiedad y la teoría de los servicios públicos
Author: Ana Carolina Mercado Gazabón
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2015
View Open Access Book
Share
Open Access Book
Open Access Book image
Influence of Emitter Surface Roughness and Emission Inhomogeneity on Efficiency and Stability of High Power Fusion Gyrotrons
Author: Zhang, Jianghua
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2016
View Open Access Book
Share
Open Access Book
Open Access Book image
Influence of Material and Geometry on the Performance of Superconducting Nanowire Single-Photon Detectors
Author: Henrich, Dagmar
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2013
View Open Access Book
Share
Open Access Book
Open Access Book image
Inferenz von Kreuzungsinformationen aus Flottendaten
Author: Ruhhammer, Christian
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2017
View Open Access Book
Share
Open Access Book
Open Access Book image
Indikatoren einer diversity-gerechten Unternehmenskultur
Author: Watrinet, Christine
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2008
View Open Access Book
Share
Open Access Book
Open Access Book image
Innovative Geo-Information Tools for Governance
Author: Reckien, Diana, Georgiadou, Yola
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2019
View Open Access Book
Share
Open Access Book
Open Access Book image
Iniciação científica: aspectos históricos, organizacionais e formativos da atividade no ensino superior brasileiro
Author: Queiroz, Salete Linhares, Massi, Luciana
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2015
View Open Access Book
Share
Open Access Book
Open Access Book image
Innovations in Insurance, Risk- and Asset Management:Proceedings of the Innovations in Insurance, Risk- and Asset Management Conference Innovations in Insurance, Risk- and Asset Management
Author: Aleksey Min, Lorenz Schneider, Rudi Zagst, Matthias Scherer, Daniël Linders, Kathrin Glau
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2018
View Open Access Book
Share
Open Access Book
Open Access Book image
Information and Communications Technology in the 21st Century Classroom
Author: Pérez Marín, Diana
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2014
View Open Access Book
Share
Open Access Book
Open Access Book image
Informatica umanistica
Author: Ana Pano Alamán, Valeria Zotti
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2017
View Open Access Book
Share
Open Access Book
Open Access Book image
Infrastructure in a Changing World. Trends and Challenges
Author: Alberto Belladonna, Carlo Secchi
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2020
View Open Access Book
Share
Open Access Book
Open Access Book image
Innovationsprozesse wissensbasierter Technologien : Beispiel der PEM-Brennstoffzelle
Author: Bertram, Björn
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2011
View Open Access Book
Share
Open Access Book
Open Access Book image
Inorganic Fullerene-like Nanoparticles and Inorganic Nanotubes
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2015
View Open Access Book
Share
Open Access Book
Open Access Book image
An Integrated Nonlinear Wind-Waves Model for Offshore Wind Turbines
Author: Enzo Marino
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2011
View Open Access Book
Share
Open Access Book
Open Access Book image
Innovationsfähigkeit im demografischen Wandel - Entwicklung und Validierung des Assessment-Tools NovaDemo zur Erfassung der Innovationsfähigkeit von Einzelpersonen und Arbeitsgruppen
Author: Waßmann, Stefan
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2014
View Open Access Book
Share
Open Access Book
Open Access Book image
Integrated methodology for production related risk management of vehicle electronics (IMPROVE)
Author: Geis, Stefan Rafael
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2006
View Open Access Book
Share
Open Access Book
Open Access Book image
Insect Science-Diversity, Conservation and Nutrition
Author: Umar Sharif, Mohammad Manjur Shah
Source: Directory of Open Access Books
Publication Date: 2018
View Open Access Book
Share
Open Access Book
Open Access Book image
Integrierte Sensoren mit photonischen Kristallen auf Polymerbasis
Author: Schelb, Mauno
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2012
View Open Access Book
Share
Open Access Book
Open Access Book image
Insight and Intuition - Two Sides of the Same Coin?
Author: Michael Öllinger, Eörs Szathmáry, Kirsten G. Volz
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2018
View Open Access Book
Share
Open Access Book
Open Access Book image
Inquisición Portuguesa y Monarquía Hispánica en tiempos del perdón general de 1605
Author: Ana Isabel López-Salazar Codes
Source: Directory of Open Access Books
Publication Date: 2010
View Open Access Book
Share
Open Access Book
Open Access Book image
Intégration dans les Amériques
Author: Jean-Michel Lacroix, Maria Eugenia Cosio-Zavala, Martine Azuelos (dir.)
Source: Directory of Open Access Books
Publication Date: 2004
View Open Access Book
Share
Open Access Book
Open Access Book image
Intelecto en acción: Aristóteles y la filosofía como forma de vida
Author: Alejandro Farieta-Barrera
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2018
View Open Access Book
Share
Start of page image
pages image 4165
pages image 4166
pages image 4167
pages image 4168
pages image 4169
selected page page image 4170
pages image 4171
pages image 4172
pages image 4173
pages image 4174
End of page image