Categories (along with other features like cross-references, lists, and infoboxes) help you to find information, even if you don't know what exists or what it's called. The following list of categories of Wikipedia's coverage parallels our other lists by topic.
- Main categories: Research and Library and information science
Reference works • Almanacs • Atlases • Biographical dictionaries • Dictionaries (online) • Directories (online) • Encyclopedias (online) • Glossaries • Handbooks and manuals • Lists • Medical manuals • Reference works in the public domain • Style guides • Trivia books • Reference book stubs • Web sites
Further research tools and topics • Academic disciplines • Archives • Books • Clients • Colleges • Curricula • Databases (online) • Distance education • Grammar • Government agencies • Indices • Information • Knowledge • Libraries (digital) • Library cataloging and classification • News agencies • Periodic table • Prefixes • Reading • Research • Search engines • Suffixes • Topics • Universities • Writing
Culture and Humanities – Celebrities • Classics • Cooking • Critical theory • Entertainment • Food and drink • Games • Languages • Literature • Mass media • Mythology • Parapsychology • Parties • Pets • Philosophy • Censorship in the arts • Popular culture • Publications • Radio • Television • Traditions • Tourism • Toys
- Arts and Entertainment – Arts and crafts • Festivals • Hobbies • Humor • Literature • Museums • Poetry
- Performing arts – Dance • Film • Music • Opera • Theatre
- Visual arts – Architecture • Crafts • Design • Drawing • Film (Animation) • Comics • Painting • Photography • Sculpture
- Games and Toys
- Board games • Card games • Video games • Role-playing games
- Sports – American football • Auto racing • Baseball • Basketball • Boxing • Canoeing • Cricket • Cycling • Golf • Gymnastics • Horse racing • Ice hockey • Lacrosse • Olympics • Rugby union • Sailing • Skiing • Soccer • Swimming • Tennis • Track & field • Whitewater sports
- Mass media – Film • Newspapers • Publications • Publishing • Radio • Television
- Main category: Geography
Cities • Continents • Countries • Deserts • Lakes • Landforms • Maps • Mountains • Oceans • Parks • Rivers • Subterranea • Towns • Villages
- Main categories: Health, Self-care, and Healthcare occupations
Self-care – Determinants of health • Health promotion • Health risks • Life extension • Prevention • Sexual health
- Nutrition – Dietary supplements • Dietetics • Nutrients (Amino acids, Minerals, Nootropics, Phytochemicals, Vitamins) • Nutritional advice pyramids
- Exercise – Aerobics • Bodyweight exercise (Calisthenics) • Cycling • Exercise equipment • Exercise instructors • Dancing • Exercise physiology • Hiking • Pilates • Running • Sports • Swimming • T'ai Chi Ch'uan • Walking • Weight training • Weight training exercises • Yoga
- Hygiene – Cleaning • Oral hygiene
Public health – Health by country • Healthcare • Health law • Health promotion • Health standards • Occupational safety and health • Pharmaceutical industry • Safety •
Health science – Clinical research • Diseases • Epidemiology • Midwifery • Nursing • Nutrition • Optometry • Pharmacy • Public health
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- Dentistry • Dental hygiene and Orthodontics • Pharmaceuticals policy •
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- Human medicine – Alternative medicine • Cardiology • Endocrinology • Forensics • Gastroenterology • Human Genetics • Geriatrics • Gerontology • Gynecology • Hematology • Nephrology • Neurology • Obstetrics • Oncology • Ophthalmology • Orthopedic surgery • Pathology • Pediatrics • Psychiatry • Rheumatology • Sleep • Surgery • Urology
By Period • By Topic • History of science • Historiography • Timelines
- By continent – Africa • Asia • Europe • North America • Oceania • South America
- By country
- Main categories: Mathematics and Abstraction
Algebra • Analysis • Arithmetic • Education • Equations • Geometry • Logic • Measurement • Numbers • Proofs • Statistics • Theorems • Trigonometry
- Main categories: Science, Natural sciences, and Nature
Scientific method • Scientists
Biology • Ecology • Health sciences • Medicine • Neuroscience • (See also the Health and fitness section above)
Physical sciences • Astronomy • Chemistry • Climate • Earth sciences • Geology • Physics • Space
Nature: • Animals • Environment • Humans • Life • Natural resources • Plants • Pollution
- Main categories: People, Personal life, Self and Surnames,
People • Beginners and newcomers • Biographies • Children • Heads of state • Humans • Legal categories of people • Men • Old age • Political people • Rivalry • Social groups • Subcultures • Women •
- Specific people: by city • by company • by continent • by educational institution • by ethnic or national descent • by ethnic or national origin • by ethnicity or race • by medical or psychological condition • by nationality • by occupation • by political orientation • by religion • by revolution • by status • by year born • by year deceased
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- Activists • Actors • Astronauts • Billionaires • Chief executives • Colonial people • Composers • Cyborgs • Defectors • Generals • Humanitarians • Innovators • Inventors • Lesbian, gay, bisexual or transgendered • Monarchs • Musicians • Musical groups • Philosophers • Politicians • Presidents • Princes • Princesses • Professors • Revolutionaries • Scientists • Settlers • Slaves • Victims • People associated with war • World record holders • Writers
Self • Alter egos • Consciousness studies • Gender • Personality • Sexuality • Sexual orientation and identity
- Personal life • Clothing • Employment • Entertainment • Food and drink • Games • Health • Hobbies • Home • Income • Interpersonal relationships • Leisure • Love • Motivation • Personal development • Pets
- Main categories: Philosophy and Thought
Philosophy • Branches • Schools and traditions • Movements • Theories • Arguments • Philosophers • Literature • History • By era • By region • Aesthetics • Epistemology • Ethics • Logic • Metaphysics
Thinking and thinking skills • Attention • Cognition • Cognitive biases • Creativity • Decision theory • Emotion • Error • Imagination • Intelligence • Intelligence researchers • Learning • Memory • Memory biases • Mnemonics • Nootropics (smart drugs) • Organizational thinking • Perception • Problem solving • Psychological adjustment • Psychometrics • Qualities of thought
Allah • Bible • Buddhas • Deities • Demons • Exorcism • God • Jesus • Mythology • Occult • Prayer • Prophecy • Qur'an • Religious ethics • Religious law • Religious philosophy and doctrine • Ritual • Spirituality • Theology
Belief systems • Religious faiths, traditions, and movements • Agnosticism • Animism • Atheism • Deism • Determinism • Esotericism • Gnosticism • Humanism • Monism • Monotheism • Mysticism • New Age • Paganism • Pantheism • Polytheism • Shamanism • Skepticism • Spiritualism • Theosophy • Transcendentalism • Unitarianism
Major beliefs of the world • Agnosticism • Atheism • Ayyavazhi • Bahá'à Faith • Buddhism • Cao Dai • Chinese traditional religion • Christianity • Confucianism • Falun Gong • Hinduism • Islam • Jainism • Judaism • Mormonism • Neopaganism • Rastafarianism • Satanism • Scientology • Sikhism • Spiritism • Shinto • Taoism • Tenrikyo • Unitarian Universalism • Wicca • Zoroastrianism
Mythology • Mythology by culture • Abrahamic mythology • Buddhist mythology • Christian mythology • Hindu mythology • Islamic mythology • Jewish mythology
See also: Criticism of religion
- Main categories: Science, Social sciences, and Society
Science and Scientific method • Scientists
Social sciences • Anthropology • Archaeology • Cultural studies • Demographics • Economics • Heuristics • Information studies • International relations • Linguistics • Psychology • Media studies • Political science • Social scientists • Sociology • Sexology • Systems theory
Society • Activism • Business • Communication • Crime • Education • Ethnic groups • Family • Finance • Government • Health • Home • Industries • Infrastructure • Labor • Law • Mass media • Military • Money • Organizations • Peace • Politics • Rights • War
- Main categories: Technology and Applied sciences
Agriculture & Agronomy • Architecture • Artificial intelligence • Automation • Biotechnology • Blu-ray • Cartography • Chemical engineering • Communication (Media studies • Telecommunications) • Construction • Design • Digital divide • Electronics • Energy • Ergonomics • Firefighting • Fire prevention • Forensics • Forestry • Industry • Information science • Information technology • Internet • Management • Manufacturing • Marketing • Medicine (Unsolved problems in neuroscience) • Metalworking • Microtechnology • Military science • Mining • Nanotechnology • Nuclear technology • Nutrition • Optics • Plumbing • Robotics • Sound technology • Space exploration • Technology forecasting • Tools
Computing: Classes of computers • Companies • Computer architecture • Computer model • Computer science • Computer security • Computing and society • Data • Embedded systems • Free software • Human-computer interaction • Information systems • Internet • Mobile Internet • Languages • Multimedia • Networks • Industrial Networks • Operating systems • Platforms • Product lifecycle management • Programming • Real-time computing • Software • Software engineering • Unsolved problems in computer science • More...
Electronics: Avionics • RF & MMIC Design • Circuits • Companies • Connectors • Consumer electronics •