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
Remodeling of cardiac passive electrical properties and susceptibility to ventricular and atrial arrhythmias
Author: George E. Billman
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2015
View Open Access Book
Share
Open Access Book
Open Access Book image
Remote Sensing of Atmospheric Conditions for Wind Energy Applications
Author: Hasager, Charlotte, Sjöholm, Mikael
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2019
View Open Access Book
Share
Open Access Book
Open Access Book image
La réorientation européenne de la TVA
Author: Francis Querol
Source: Directory of Open Access Books
Publication Date: 2014
View Open Access Book
Share
Open Access Book
Open Access Book image
Foundations of Quantum Theory: From Classical Concepts to Operator Algebras
Author: Klaas Landsman
Source: Directory of Open Access Books
Usage Rights:
View Open Access Book
Share
Open Access Book
Open Access Book image
Reorienting Indian Agriculture: Challenges and Opportunities
Author: Paroda, Raj
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2018
View Open Access Book
Share
Open Access Book
Open Access Book image
La República de sabios. Profesores, cátedras y universidad en la Salamanca del siglo de Oro
Author: Rubio Muñoz, Francisco Javier
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2020
View Open Access Book
Share
Open Access Book
Open Access Book image
Les Républicains du Havre au xixe siècle (1815-1889)
Author: Pierre Ardaillou
Source: Directory of Open Access Books
Publication Date: 1999
View Open Access Book
Share
Open Access Book
Open Access Book image
Responsabilità penale e rischio nelle attività mediche e d'impresa (un dialogo con la giurisprudenza)
Author: Roberto Bartoli
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2010
View Open Access Book
Share
Open Access Book
Open Access Book image
Representation in the Brain
Author: Jonathan Edwards, Asim Roy, Juyang Weng, Leonid Perlovsky, Tarek Besold
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2018
View Open Access Book
Share
Open Access Book
Open Access Book image
Research-to-Business Beziehungen : Technologietransfer durch Kommunikation von Werten (Barrieren, Erfolgsfaktoren und Strategien)
Author: Obermaier, Georg
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2009
View Open Access Book
Share
Open Access Book
Open Access Book image
Research Methods Pedagogy: Engaging Psychology Students in Research Methods and Statistics
Author: Lynne D. Roberts
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2016
View Open Access Book
Share
Open Access Book
Open Access Book image
Representation and Resistance: South Asian and African Women's Texts at Home and in the Diaspora
Author: Jaspal Kaur Singh
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2008
View Open Access Book
Share
Open Access Book
Open Access Book image
Research of Pathogenesis and Novel Therapeutics in Arthritis
Author: Tang, Chih-Hsin
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2019
View Open Access Book
Share
Open Access Book
Open Access Book image
Republikflucht. Flucht und Abwanderung aus der SBZ/DDR 1945 bis 1961. Veröffentlichungen zur SBZ-/DDR-Forschung im Institut für Zeitgeschichte. Mit einer Einleitung von Damian van Melis
Author: Melis, Damian van, Bispinck, Henrik
Source: Directory of Open Access Books
Publication Date: 2006
View Open Access Book
Share
Open Access Book
Open Access Book image
The Restless Compendium: Interdisciplinary Investigations of Rest and Its Opposites
Author: Kimberley Staines, James Wilkes, Felicity Callard
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2017
View Open Access Book
Share
Open Access Book
Open Access Book image
Representações do senado romano na Ab Urbe Condita Libri de Tito Lívio: livros 21-30
Author: Collares, Marco Antonio
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2010
View Open Access Book
Share
Open Access Book
Open Access Book image
Retours à Marcel Schwob
Author: Christian Berg, Monique Jutrin, Agnès Lhermitte, Alexandre Gefen (dir.)
Source: Directory of Open Access Books
Publication Date: 2007
View Open Access Book
Share
Open Access Book
Open Access Book image
Resonance
Author: Jan Awrejcewicz
Source: Directory of Open Access Books
Publication Date: 2017
View Open Access Book
Share
Open Access Book
Open Access Book image
Les ressources minérales, enjeu majeur du développement durable
Author: Georges Calas
Source: Directory of Open Access Books
Publication Date: 2016
View Open Access Book
Share
Open Access Book
Open Access Book image
Revolution und Gegenrevolution 1789–1830. Zur geistigen Auseinandersetzung in Frankreich und Deutschland
Author: Dufraisse, Roger
Source: Directory of Open Access Books
Publication Date: 1991
View Open Access Book
Share
Open Access Book
Open Access Book image
Revolte und Sozialstatus von der Spätantike bis zur Frühen Neuzeit / Révolte et statut social de l’Antiquité tardive aux Temps modernes
Author: Depreux, Philippe
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2008
View Open Access Book
Share
Open Access Book
Open Access Book image
Los retos de la diferencia : Los actores de la multiculturalidad entre México y Colombia
Author: María Teresa Rodríguez, Odile Hoffmann
Source: Directory of Open Access Books
Publication Date: 2007
View Open Access Book
Share
Open Access Book
Open Access Book image
Die Revolution 1918/19 in Baden
Author: Schmidgall, Markus
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2011
View Open Access Book
Share
Open Access Book
Open Access Book image
Die Revokation des Edikts von Nantes und die Protestanten in Südostfrankreich (Provence und Dauphiné) 1685-1730
Author: Bernard, Anna
Source: Directory of Open Access Books
Usage Rights:
Publication Date: 2003
View Open Access Book
Share
Open Access Book
Open Access Book image
Les revues et la dynamique des ruptures
Author: François Hourmant, Jean Baudouin (dir.)
Source: Directory of Open Access Books
Publication Date: 2007
View Open Access Book
Share
Start of page image
pages image 3262
pages image 3263
pages image 3264
pages image 3265
pages image 3266
selected page page image 3267
pages image 3268
pages image 3269
pages image 3270
pages image 3271
End of page image