Browse by Subjects

Please select a value to browse from the list below.

Library of Congress Subject Areas (32910)
- A General Works (225)
  - AC Collections. Series. Collected works (11)
  - AI Indexes (General) (1)
  - AM Museums (General). Collectors and collecting (General) (10)
  - AS Academies and learned societies (General) (2)
  - AZ History of Scholarship The Humanities (99)
- B Philosophy. Psychology. Religion (3462)
  - B Philosophy (General) (486)
  - BC Logic (53)
  - BD Speculative Philosophy (35)
  - BF Psychology (2172)
  - BH Aesthetics (46)
  - BJ Ethics (85)
  - BL Religion (291)
  - BM Judaism (8)
  - BP Islam. Bahaism. Theosophy, etc (8)
  - BQ Buddhism (6)
  - BR Christianity (96)
  - BS The Bible (17)
  - BT Doctrinal Theology (18)
  - BV Practical Theology (10)
    - BV1460 Religious Education (4)
- C Auxiliary Sciences of History (394)
  - C Auxiliary sciences of history (General) (69)
  - CB History of civilization (58)
  - CC Archaeology (314)
  - CD Diplomatics. Archives. Seals (8)
  - CN Inscriptions. Epigraphy. (4)
  - CR Heraldry (1)
  - CS Genealogy (1)
  - CT Biography (15)
- D History General and Old World (1072)
  - D History (General) (483)
    - D051 Ancient History (15)
    - D111 Medieval History (41)
    - D204 Modern History (51)
    - D501 World War I (20)
    - D731 World War II (18)
    - D839 Post-war History, 1945 on (4)
    - D901 Europe (General) (15)
  - DA Great Britain (117)
  - DB Austria (3)
  - DC France (30)
  - DD Germany (25)
  - DE The Mediterranean Region. The Greco-Roman World (156)
  - DF Greece (18)
  - DG Italy (19)
  - DH Netherlands (The Low Countries) (6)
  - DJ Netherlands (Holland) (2)
  - DK Russia. Soviet Union. Former Soviet Republics (6)
  - DP Spain (3)
  - DR Balkan Peninsula (10)
  - DS Asia (24)
  - DT Africa (41)
  - DU Oceania (South Seas) (1)
- E History America (56)
  - E11 America (General) (7)
  - E151 United States (General) (20)
- F History United States, Canada, Latin America (63)
  - F001 United States local history (4)
  - F1001 Canada (General) (4)
  - F1201 Latin America (General) (42)
- G Geography. Anthropology. Recreation (1178)
  - G Geography (General) (86)
  - GA Mathematical geography. Cartography (7)
  - GB Physical geography (1)
  - GC Oceanography (1)
  - GE Environmental Sciences (343)
  - GF Human ecology. Anthropogeography (51)
  - GN Anthropology (754)
  - GR Folklore (1)
  - GT Manners and customs (10)
  - GV Recreation Leisure (74)
- H Social Sciences (7953)
  - H Social Sciences (General) (2429)
  - HA Statistics (599)
    - HA33 Management Science (434)
  - HB Economic Theory (448)
  - HC Economic History and Conditions (90)
  - HD Industries. Land use. Labor (398)
    - HD28 Management. Industrial Management (266)
    - HD29 Operational Research - Applications (40)
    - HD61 Risk Management (10)
  - HE Transportation and Communications (90)
  - HF Commerce (109)
    - HF5351 Business (29)
    - HF5415 Marketing (10)
    - HF5548.32 E-commerce (6)
    - HF5601 Accounting (43)
  - HG Finance (233)
  - HJ Public Finance (40)
  - HM Sociology (866)
  - HN Social history and conditions. Social problems. Social reform (207)
  - HQ The family. Marriage. Woman (128)
    - HQ1236 Gender Politics (32)
    - HQ755 Popular works. Guidebook for parents (10)
      - HQ755.8 Parents. Parenthood (10)
  - HS Societies secret benevolent etc (7)
  - HT Communities. Classes. Races (119)
  - HV Social pathology. Social and public welfare (903)
    - HV1568 Disability studies (251)
    - HV3008 Mental handicap and social care (57)
    - HV4545 Mendicancy. Vagabondism. Tramps. Homelessness (Great Britain) (3)
    - HV5001 Alcohol use and miuse (40)
    - HV5800 Drug use and miuse (43)
    - HV9069 Delinquency studies (10)
  - HX Socialism. Communism. Anarchism (34)
- J Political Science (1351)
  - JA Political science (General) (148)
  - JC Political theory (123)
  - JF Political institutions (General) (66)
  - JK Political institutions (United States) (18)
  - JL Political institutions (America except United States) (2)
  - JN Political institutions (Europe) (192)
    - JN101 Great Britain (36)
    - JN1187 Scotland (2)
  - JQ Political institutions Asia (17)
  - JS Local government Municipal government (13)
  - JV Colonies and colonization. Emigration and immigration. International migration (34)
  - JX International law (12)
  - JZ International relations (413)
- K Law (1678)
  - K Law (General) (415)
  - KD England and Wales (33)
  - KF United States Federal Law (1)
  - KZ Law of Nations (6)
- L Education (321)
  - L Education (General) (61)
  - LA History of education (3)
  - LB Theory and practice of education (169)
    - LB1501 Primary Education (4)
    - LB1603 Secondary Education. High schools (9)
    - LB2300 Higher Education (126)
    - LB2361 Curriculum (7)
  - LC Special aspects of education (72)
    - LC5201 Education extension. Adult education. Continuing education (59)
  - LF Individual institutions (Europe) (1)
  - LG Individual institutions (Asia. Africa) (1)
  - LT Textbooks (8)
- M Music and Books on Music (147)
  - M Music (113)
  - ML Literature of music (14)
  - MT Musical instruction and study (2)
- N Fine Arts (1927)
  - N Visual arts (General) For photography, see TR (331)
  - NA Architecture (453)
  - NB Sculpture (18)
  - NC Drawing Design Illustration (25)
  - ND Painting (32)
  - NE Print media (18)
  - NK Decorative arts Applied arts Decoration and ornament (67)
  - NX Arts in general (172)
- P Language and Literature (2704)
  - P Philology. Linguistics (233)
    - P90 Communication. Mass Media (8)
    - P95.8 Communication. Political aspects. (5)
  - PA Classical philology (112)
  - PB Modern European Languages (inc film, TV and radio studies) (264)
    - PB1501 Gaelic (Scottish Gaelic, Erse) (2)
    - PB2985 Radio and Television Studies (14)
    - PB2994 Film Studies (186)
  - PC Romance languages (86)
  - PD Germanic languages (54)
  - PE English (161)
  - PG Slavic, Baltic, Albanian languages and literature (2)
  - PI Oriental languages and literatures (5)
  - PJ Semitic (2)
  - PL Languages and literatures of Eastern Asia, Africa, Oceania (4)
  - PN Literature (General) (558)
    - PN0080 Criticism (55)
    - PN0441 Literary History (59)
    - PN1990 Broadcasting (9)
    - PN1993 Motion Pictures (30)
    - PN2000 Dramatic representation. The Theatre (173)
    - PN4731 Journalism (5)
  - PQ Romance literatures (270)
    - Hispanic Studies (48)
  - PR English literature (255)
  - PS American literature (83)
  - PT Germanic literature (128)
  - PZ Childrens literature (4)
- Q Science (9549)
  - Operations Research - Theory (83)
  - Q Science (General) (382)
    - Q335 Artificial intelligence (148)
  - QA Mathematics (inc Computing science) (4364)
    - QA 75 Electronic computers. Computer science (341)
    - QA 76 Software, computer programming, (3008)
      - QA76.575 Multimedia systems (12)
      - QA76.76 Computer software (82)
        QA76.76.I59 Interactive media, hypermedia (18)
      - QA76.76.E95 Expert Systems (Intelligent Knowledge Based Systems) (20)
      - QA76.87 Neural computers, neural networks (29)
      - QA76.9.H85 Human computer interaction (42)
    - QA 8 Philosophy of mathematics (4)
    - QA 9 Formal systems, logics (28)
    - QA101 Arithmetic (2)
    - QA150 Algebra (96)
      - QA241 Number theory (14)
    - QA165 Combinatorics (15)
    - QA171 Representation theory (17)
    - QA252 Lie algebras (5)
    - QA252 Lie algebras (5)
    - QA273 Probabilities (75)
    - QA276 Mathematical statistics (269)
    - QA297 Numerical analysis (20)
    - QA299 Analysis, Calculus (65)
    - QA351 Special functions (20)
    - QA372 Ordinary differential equations (46)
    - QA377 Partial differential equations (45)
    - QA387 Basic Lie theory (1)
    - QA440 Geometry (24)
      - QA611 Topology (13)
        QA612 Algebraic topology (9)
    - QA564 Algebraic Geometry (7)
    - QA801 Analytic mechanics (10)
  - QB Astronomy (185)
  - QC Physics (814)
    - QC173.45 Condensed Matter (27)
    - QC174.12 Quantum theory (13)
      - QC174.26.W28 Topological solitons (5)
    - QC176 Solid state physics (20)
    - QC176.8.N35 Nanoscience, nanotechnology (91)
    - QC20 Mathematical Physics (35)
    - QC355 Optics (4)
    - QC807 Geophysics (for Applied Geophysics see TN269) (7)
  - QD Chemistry (692)
    - QD478 Solid State Chemistry (26)
  - QE Geology (24)
    - QE515 Geochemistry (15)
  - QH Natural history (873)
    - QH301 Biology (327)
    - QH324.2 Computational biology (5)
    - QH426 Genetics (272)
    - QH541 Ecology (120)
    - QH75 Conservation (Biology) (216)
  - QK Botany (57)
  - QL Zoology (151)
  - QM Human anatomy (24)
  - QP Physiology (Living systems) (428)
    - QP506 Molecular biology (143)
    - QP517 Biochemistry (235)
  - QR Microbiology (360)
    - QR180 Immunology (66)
    - QR355 Virology (84)
- R Medicine (1863)
  - R Medicine (General) (266)
    - R119.9 Telecommunication in medicine, Telemedicine (6)
    - R723 Medical ethics (4)
    - R729 Types of medical practice (38)
      - R729.5.G4 General practice (35)
    - R857.O6 Optical coherence tomography (1)
    - R858 Medical informatics (5)
  - RA Public aspects of medicine (586)
    - RA0421 Public health. Hygiene. Preventive Medicine (249)
    - RA1001 Forensic Medicine. Medical jurisprudence. Legal medicine (5)
    - RA638 Immunity and immunization in relation to public health (6)
    - RA784 Nutrition (4)
    - RA788 Sexual health (5)
    - RA790 Mental health (24)
  - RB Pathology (7)
  - RC Internal medicine (455)
    - RC0254 Neoplasms. Tumors. Oncology (including Cancer) (71)
    - RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry (197)
    - RC1200 Sports Medicine (103)
    - RC667 Diseases of the circulatory (cardiovascular) system (7)
    - RC952 Geriatrics (82)
  - RD Surgery (52)
  - RE Ophthalmology (13)
  - RF Otorhinolaryngology (4)
  - RG Gynecology and obstetrics (12)
    - RG551 Pregnancy (4)
  - RJ Pediatrics (51)
    - RJ101 Child Health. Child health services (41)
    - RJ550 Diseases of adolescence. Adolescent medicine (4)
  - RK Dentistry (15)
    - RK301 Oral and dental medicine (6)
  - RL Dermatology (9)
  - RM Therapeutics. Pharmacology (177)
    - RM695 Physical therapy (1)
  - RS Pharmacy and materia medica (114)
  - RT Nursing (84)
  - RV Botanic, Thomsonian, and eclectic medicine (1)
  - RZ Other systems of medicine (35)
- S Agriculture (163)
  - S Agriculture (General) (33)
  - SB Plant culture (4)
  - SD Forestry (23)
  - SF Animal husbandry (19)
  - SH Aquaculture. Fisheries. Angling (8)
  - SK Hunting sports (1)
- T Technology (2425)
  - T Technology (General) (35)
    - T201 Patents. Trademarks (1)
  - TA Engineering (General). Civil engineering (General) (429)
    - TA 403 Materials Science (5)
    - TA1637 Image Analysis, Image Processing (105)
    - TA1650 Facial Recognition systems (9)
    - TA166 Instrumentation (153)
    - TA168 Systems engineering, cybernetics and intelligent systems (6)
  - TD Environmental technology. Sanitary engineering (6)
  - TF Railroad engineering and operation (5)
  - TH Building construction (14)
  - TJ Mechanical engineering and machinery (68)
    - Control engineering (61)
    - Intelligent control systems (1)
  - TK Electrical engineering. Electronics Nuclear engineering (1145)
    - TK5101 Telecommunications (333)
      - TK5102.9 Signal processing (4)
      - TK5103.4 Broadband (inc wireless broadband) (71)
      - TK5103.59 Optical communications, Fibre-optics (93)
      - TK5105 Data transmission systems (2)
        TK5105.5 Computer networks (2)
        TK5105.875.I57 Internet (1)
      - TK5105.888 World Wide Web (technology of) (2)
    - TK6540 Radio (12)
      - TK6570.M6 Mobile communication systems (10)
    - TK6630 Television and video (inc digital video) (6)
    - TK7800 Electronics (see also: telecommunications) (607)
      - TK7871.6 Antennas and waveguides (125)
        TK7871.67.M53 Microwave antennas (21)
      - TK7872.F5 Active filters, Frequency Selective Surfaces (38)
      - TK7876 Microwaves (15)
        TK7876.5 Millimetre waves (4)
      - TK7880 Applications of electronics (inc industrial & domestic) (203)
        TK7882.B56 Biometrics (96)
        TK7882.P3 Pattern Recognition (34)
        TK7885 Computer engineering (34)
        TK7895.E42 Embedded Systems (38)
    - TK8300 Optoelectronic devices (45)
    - TK9001 Nuclear engineering (5)
  - TL Motor vehicles. Aeronautics. Astronautics (7)
  - TN Mining engineering. Metallurgy (3)
  - TP Chemical technology (5)
  - TR Photography (27)
    - TR897.7 Computer animation (2)
  - TS Manufactures (1)
  - TX Home economics (4)
    - TX357 Nutrition. Foods and food supply (General special) (4)
- U Military Science (5)
  - U Military Science (General) (2)
- V Naval Science (1)
  - VM Naval architecture. Shipbuilding. Marine engineering (1)
- Z Bibliography. Library Science. Information Resources (55)
  - Z004 Books. Writing. Paleography (13)
  - Z665 Library Science. Information Science (26)
  - Z719 Libraries (General) (4)
  - ZA Information resources (18)
    - ZA4050 Electronic information resources (15)