Dewey Decimal vs. Library of Congress


Jump to Library of Congress Classification vs. Dewey Decimal Classification


Dewey LC Subject Area LC Dewey Subject Area
000 Generalities, Knowledge, Computers, Internet & Systems QA Mathematics, Computer Science
TK Electrical Engineering, Electronics
010 Bibliographies AI Indexes (General)
Z1001-8999 Bibliography
020 Library & Information Science Z4-1000.5 Books, Library Science
030 Encyclopedias & Books of Facts AE Encyclopedias
AG Dictionaries and other general reference works.
AY Yearbooks, Almanacs, Directories
040 [Unassigned] - -
050 Magazines, journals, & Serials AP Periodicals
AN Newspapers
060 Associations, organizations, & museums AM Museums. Collectors & Collecting
AS Academies and learned societies
AY Yearbooks, Almanacs, Directories
070 Journalism, Publishing, News media AN Newspapers
PN .Journalism
080 Quotations AC Collections. Series. Collected Works.
090 Manuscripts & Rare Books Z4-115 History of Books, Writing
Dewey LC Subject Area LC Dewey Subject Area
100 Philosophy B Philosophy history, systems
110 Metaphysics B Philosophy history, systems
BD Speculative philosophy
BH Aesthetics.
120 Epistemology BD Speculative philosophy
130 Astrology, parapsychology, occult BF1001-1999 Parapsychology. Occult Sciences
140 Philosophical Schools of Thought B Philosophy history, systems
BD Speculative philosophy
150 Psychology BF1-940 Psychology
160 Logic BC Logic
170 Ethics BJ Ethics. Social usage. Etiquette.
180 Ancient, medieval & Eastern philosophy B Philosophy history
BL Religions, Mythology. Rationalism
BQ Buddhism
190 Modern Western Philosophy B Philosophy history. Systems.
Dewey LC Subject Area LC Dewey Subject Area
200 Religion BL Religions. Mythology. 
210 Philosophy and Theory of Religion B Philosophy history
BL Religions. Mythology.
220 The Bible BS The Bible
230 Christianity & Christian theology BR Christianity
240 Christian practice & observance BR Christianity
BT Doctrinal Theology
250 Christian pastoral practice & religious orders BR Christianity
BT Doctrinal Theology
260 Church organization, social work & worship BR Christianity
BT Doctrinal Theology
270 History of Christianity BR Christianity
BT Doctrinal Theology
280 Christian Denominations BT Practical theology
BX Christian denominations & sects
290 Other Religions BL Religions
BM Judaism
BP Islam. Bahism. Theosophy
BQ Buddhism
Dewey LC Subject Area LC Dewey Subject Area
300 Social Sciences, sociology, & anthropology H Social Sciences (general)
HM Sociology (general & theoretical)
HN Social history. Social problems. Social reform.
HQ Family. Marriage. Women
HS Social Groups. Societies. Clubs.
HT Communities. Classes. Race.
310 Statistics HA Statistics
320 Political Science HX Socialism. Communism. Anarchism.
J Political Science. Legislative and executive papers. (general)
JA General works.
JC Political Theory. Theory of the state.
JF Constitutional history and administration
JK Constitutional history (U.S.)
JL Constitutional history (British America, Latin America)
JN Constitutional history (Europe)
JQ Constitutional history (Asia, Africa, Australia Oceania)
JS Local Government.
JV Colonies and colonization.  Emigration and immigration.
JX  International law. International Relations.
330 Economics HB Economic theory. Demography.
HC Economic history & conditions.
HD Economic history: agriculture & conditions.
HE Transportation and communication
HF Commerce (general)
HG Finance
HJ Public Finance
340 Law JX International Law
K Law
KD Law of United Kingdom & Ireland
KE Law of Canada
KF Law of United States
KG Law of Latin America
KH Law of South America
KJ Law of Europe
350 Public Administration & Military Science HJ Public Finance
JF Constitutional history & administration
JS Local government
U (all) Military Science
V (all) Naval Science
360 Social Problems & Social Services HN Social history, social problems. Social reform.
HV Social pathology. Social & public welfare. Criminology. 
370 Education L (all) Education
380 Commerce, communications & transportation HE Transportation and Communication
HF Commerce (general)
390 Customs, Etiquette, Folklore BJ Ethics. Social usage. Etiquette.
CE Technical chronology. Calendar.
GR Folklore
GT Manners and customs (general)
Dewey LC Subject Area LC Dewey Subject Area
400 Language P Philology and linguistics (general)
AG Dictionaries
410 Linguistics P Philology and linguistics (general)
420 English and Old English Languages PE English philology and languages
430 German & related languages PD Germanic philology and languages
PF West Germanic philology and languages
440 French & related languages PC Romance philology and languages
450 Italian, Romanian & related languages PC Romance philology and languages
460 Spanish & Portuguese Languages PC Romance philology and languages
470 Latin & Italic Languages PA Classical philology and literature.  Byzantine and modern Greek literature.  Medieval and modern Latin literature. 
PC Romance philology and languages
480 Classical & modern Greek Language PA Classical philology and literature.  Byzantine and modern Greek literature.  Medieval and modern Latin literature.
490 Other language PB Celtic language & literatures.
PG Slavic, Baltic, Albanian language & literature.
PH Finno-Ugarian, Basque languages & literature.
PJ Egyptian, Coptic, Hamitic, and Semitic philology & languages
PK Indo-Iranian languages & literatures.
PL Eastern Asian, Oceanian, African languages & literatures.
PM American Indian and artificial languages.
Dewey LC Subject Area LC Dewey Subject Area
500 Science Q Science (General)
510 Mathematics QA Mathematics. Computer Science.
520 Astronomy QB Astronomy
530 Physics QC Physics
540 Chemistry QD Chemistry. Crystallography
550 Earth Sciences & Geology QE Geology.
GC Oceanography.
560 Fossils & Prehistoric life GF Human ecology. Anthropogeography.
GN Anthropology.
QE Geology.
QH Natural history. Biology.
570 Biology & Life Sciences QH Natural history. Biology.
QP Physiology
QR Microbiology
580 Plants (Botany) QK Botany
590 Animals (Zoology) QL Zoology
Dewey LC Subject Area LC Dewey Subject Area
600 Technology T Technology (general)
610 Medicine QM Human Anatomy.
R (all) Medicine (general)
RA Public aspects of medicine.  State medicine. Public health.
RB Pathology.
RC Internal medicine. Practice of medicine.
RD Surgery.
RE Ophthalmology.
RF Otorhinolaryngology.
RG Gynecology and Obstetrics.
RJ Pediatrics.
RK Dentistry.
RL Dermatology.
RM Therapeutics. Pharmacology.
RS Pharmacy and material medica.
RT Nursing.
RV Botanic. Thomsonian and Eclectic medicine.
RX Homeopathy.
RZ Other systems of medicine.
620 Engineering TA Engineering. (General) Civil engineering. (General)
TC Hydraulic Engineering
TD Environmental technology. Sanitary engineering.
TE Highway engineering.  Roads and pavements.
TF Railroad engineering & operation
TG Bridge engineering
TJ Mechanical engineering & machinery.
TK Electrical engineering. Electronics. Nuclear engineering.
TL Motor vehicles. Aeronautics. Astronautics.
TN Mining engineering. Metallurgy.
TR Photography.
630 Agriculture S (all) Agriculture. Plant and Animal Industry.
SB Plant culture.
SD Forestry.
SF Animal culture.
SH Aquaculture. Fisheries. Angling.
SK Hunting.
640 Home & Family Management TT Handicrafts. Arts & crafts.
TX Home economics.
650 Management & Public Relations H Social Sciences (general)
HA Statistics.
HB Economic Theory. Demography.
HC Economic History & Conditions.
HD Economic History: Agriculture & industries.
HF Commerce. (general)
HG Finance.
HM Public Finance.
660 Chemical Engineering TP Chemical technology
670 Manufacturing TS Manufactures.
680 Manufacturing specific products TS Manufactures.
TT Graphic Arts.
690 Building & Construction TH Building construction.
Dewey LC Subject Area LC Dewey Subject Area
700 Arts N Visual Arts.
NX Arts in General.
710 Landscaping & area planning SB Plant culture
720 Architecture NA Architecture
730 Sculpture, ceramics & metalwork NB Sculpture
CJ Numismatics
740 Drawing & Decorative Arts NC Drawing. Design. Illustration.
NK Decorative arts. Applied arts. Decoration and ornament.
750 Painting ND Painting
760 Graphic Arts NC Drawing. Design. Illustration
ND Painting
NE Print media.
770 Photography TR Photography.
780 Music M Music, instrumental and vocal.
ML Literature of Music.
MT Musical instruction & study.
790 Sports, games & entertainment GV Recreation. Leisure.
Dewey LC Subject Area LC Dewey Subject Area
800 Literature, rhetoric & criticism P (all) Language and Literature
PN Literary history and collections. Theater, oratory, journalism
810 American literature in English PS American literature
PZ Juvenile belles letters
820 English & Old English literatures PR English literature
PZ Juvenile belles letters
830 German & Related literatures PT Germanic literature
PZ Juvenile belles letters
840 French & Related literatures PQ Romance Literature
PZ Juvenile belles letters
850 Italian, Romanian & related literatures PQ Romance Literature
PZ Juvenile belles letters
860 Spanish & Portuguese literatures PQ
 Romance Literature
PZ Juvenile belles letters
870 Latin & Italic literatures PQ Classical philology and literature. Byzantine and modern Greek literature. Medieval and modern Latin literature.
PZ Juvenile belles letters
880 Classical & modern Greek literatures PA Classical philology and literature. Byzantine and modern Greek literature. Medieval and modern Latin literature.
PZ Juvenile belles letters
890 Other literatures PB Celtic language & literatures.
PG Slavic, Baltic, Albanian language & literature.
PH Finno-Ugarian, Basque languages & literature.
PJ Egyptian, Coptic, Hamitic, and Semitic philology & languages
PK Indo-Iranian languages & literatures.
PL Eastern Asian, Oceanian, African languages & literatures.
PZ Juvenile belles letters.
Dewey LC Subject Area LC Dewey Subject Area
900 History
 CB History of Civilization.
D (all) History and Topography (except America)
E (all) America and U.S. (general)
F (all) United States (local) and America except the U.S.
910 Geography & Travel G Geography (general)
GA Mathematical geography. Cartography.
GB Physical geography.
920 Biography & Genealogy CD
 Diplomatics. Archives. Seals.
CR Heraldry.
CS Genealogy.
CT Biography.
930 History of the Ancient World (to ca. 499 A.D.) CB History of Civilization.
CC Archaeology.
CN Epigraphy. Inscriptions.
DA Great Britain.
DAW Central Europe.
DB Austria. Lichtenstein, Hungary, Czechoslovakia.
DC France. Andorra. Monaco.
DD Germany. East Germany.
DE Classical Antiquity, Mediterranean
DF Greece.
DG Italy. Malta.
940 History of Europe (ca 500 A.D.) DA Great Britain.
DAW Central Europe.
DB Austria. Lichtenstein, Hungary, Czechoslovakia.
DC France. Andorra. Monaco.
DD Germany.  East Germany.
DF Greece.
DG
 Italy. Malta.
DH Belgium. Luxemburg.
DJ Holland.
DJK Eastern Europe.
DK Soviet Union. Poland.
DL Scandinavia.
DP Spain. Portugal.
DQ Switzerland.
DR Balkan Peninsula.
950 History of Asia DS Asia
960 History of Africa DT Africa
970 History of North America E (all) America and U.S. (general)
F 1-1392 United States (local). North America including Mexico.
980 History of South America F 1401- 3799 Central and South America
990 History of other regions DU Australia and Oceania.