Subject Category Lists
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| Academic* | ACA | 17 |
| Accounting | ACC | 22 |
| Adhesives | ADH | 7 |
| Advertising | ADV | 45 |
| Advertising Assn | ADZ | 1 |
| Aerospace | AER | 66 |
| Africa* | AX | 13 |
| Agriculture Farming | AGR | 411 |
| Aircraft Airlines | AIR | 22 |
| Anthropology | ANT | 27 |
| Archaeology | ARC | 14 |
| Architecture | ARH | 59 |
| Argentina | AR | 1 |
| Art/Graphics/Design | ART | 86 |
| Asia related | AI | 8 |
| Asian Studies* | ASI | 63 |
| Association* | ASN | 2 |
| Astronomy | AST | 20 |
| Audio Video* | AV | 13 |
| Australia | AU | 3 |
| Austria | AT | 3 |
| Automotive | AUT | 140 |
| Bangladesh | BG | 1 |
| Banking/Finance/Securities | BAF | 132 |
| Beauty Cosmetics | BEA | 48 |
| Beverages | BEV | 78 |
| Bibliography | BIB | 2 |
| Biology/Botany/Zoology | BIO | 426 |
| Bolivia | BO | 1 |
| Bookdealer/Pubr-Distr* | BD | 10 |
| Botswana | BS | 1 |
| Brazil | BL | 2 |
| Broadcasting/TV/Radio | BRD | 47 |
| Brunei | BX | 1 |
| Building Construction | BUI | 143 |
| Business | BUS | 799 |
| Cambodia | CB | 3 |
| Canada | CA | 7 |
| Cataloged by Natl Diet Library | NDL | 2 |
| Ceramics Glass | CER | 109 |
| Chamber of Commerce & Industry | CCI | 562 |
| Chemistry | CHE | 294 |
| Children (for) | CHF | 20 |
| Children (on) | CHO | 84 |
| Chile | CL | 2 |
| China | CN | 5 |
| Clothing Fashion | CLO | 161 |
| Colombia | CK | 1 |
| Commerce/Mass Marketing | CMM | 162 |
| Communications | COM | 89 |
| Computer & IT | COP | 141 |
| Construction (heavy) | CON | 155 |
| Crime/Police/Security | CRI | 45 |
| Cuba | CU | 1 |
| Culture | CUL | 22 |
| Czech Republic | CZ | 1 |
| Denmark | DK | 6 |
| Dental Dentistry | DEN | 83 |
| Design | DES | 4 |
| Development | DEV | 35 |
| Dictionary | DIC | 1 |
| Earth Sciences | EAR | 97 |
| Economics | ECO | 226 |
| Ecuador | EC | 2 |
| Education | EDU | 361 |
| Egypt | EG | 1 |
| Electronics | ELE | 235 |
| Embassy Government | EMB | 77 |
| Energy | ENE | 74 |
| Engineering | ENG | 232 |
| England (United Kingdom) | UK | 7 |
| English Study for Japanese | EGT | 2 |
| Entertainment | ENT | 26 |
| Environment | ENV | 225 |
| Estonia | EE | 1 |
| Ethiopia | ET | 1 |
| Export Import | EXI | 298 |
| Eyes/Vision/Blindness | EYE | 21 |
| Fashion (see CLO TEX)* | FAS | 4 |
| Fiction (literature) | FIC | 4 |
| Finland | FI | 1 |
| Fire/Disaster/Earthquake | FIR | 55 |
| Fish Fisheries | FIS | 173 |
| Folklore Folkcraft | FOL | 19 |
| Food/Food Industry/Cooking | FOO | 419 |
| Forest Lumber | FOR | 153 |
| France | FR | 10 |
| Gabon | GA | 1 |
| Gardening | GAR | 76 |
| General nec | GEN | 35 |
| Geography | GEO | 34 |
| Geriatrics | GER | 29 |
| Germany | DE | 10 |
| Giftware/Toys/Origami | GIF | 36 |
| Government | GOV | 200 |
| Graphics (see ADV ART PRI) | GRA | 2 |
| Guatemala | GT | 1 |
| Health | HEA | 261 |
| Heating Airconditioning | HET | 37 |
| History/Current Events | HIS | 143 |
| Hobbies | HOB | 36 |
| Hospital | HOS | 26 |
| Hotel | HOT | 24 |
| Housing Home | HOU | 56 |
| Humor (see LIT)* | HUM | 2 |
| Hungary | HU | 1 |
| India | II | 2 |
| Industry | IND | 769 |
| Information Science/Service | INF | 114 |
| Information Technology | ITY | 1 |
| Instrumentation | INS | 81 |
| Insurance | INU | 52 |
| Interior Housewares | INT | 120 |
| Internet related | NET | 3 |
| Internet service provider | ISP | 1 |
| Iraq | IQ | 1 |
| Ireland | IE | 2 |
| Italy | IT | 2 |
| Japan Japanese | JP | 1 |
| Japanese language teaching | JPT | 3 |
| Jewelry/Watches/Accessories | JEL | 64 |
| Jordan | JO | 1 |
| Journalism | JRN | 13 |
| Kenya | KE | 1 |
| Korea | KR | 25 |
| Kuwait | KU | 1 |
| Labor (unions, personnel) | LAB | 282 |
| Laser | LAS | 19 |
| Latin America | LA | 2 |
| Law | LAW | 96 |
| Leather Leathergoods | LEA | 82 |
| Library/Information Science | LIB | 77 |
| Linguistics Language | LIN | 116 |
| Literary Political | LPR | 1 |
| Literature | LIT | 103 |
| Lithuania | LT | 1 |
| Luxembourg | LU | 2 |
| Machinery | MAC | 185 |
| Malawi | MW | 1 |
| Malaysia | MY | 2 |
| Management | MAN | 97 |
| Maps and Atlases | MAP | 8 |
| Marketing | MAR | 22 |
| Marshall Islands | MH | 1 |
| Materials (science of) | MTR | 19 |
| Mathematics | MAT | 28 |
| Medical | MED | 971 |
| Meeting/Convention/Exhibition | MEE | 42 |
| Metals | MET | 281 |
| Meteorology Weather | MGY | 43 |
| Mexico | MX | 1 |
| Micronesia (Fed States of) | FM | 1 |
| Middle East | ME | 5 |
| Military | MIL | 25 |
| Mining | MIN | 37 |
| Mongolia | MN | 1 |
| Motion Pictures/Video | MOT | 27 |
| Museums | MUA | 59 |
| Music | MUS | 57 |
| Myanmar (Burma) | BR | 3 |
| Nauru | NA | 1 |
| Nepal | NP | 1 |
| Netherlands | NL | 1 |
| New Zealand | NZ | 2 |
| News Newspaper | NEW | 26 |
| Non-Government Organization | NGO | 2 |
| Norway | NO | 1 |
| Nuclear | NUC | 64 |
| Nursing | NUR | 6 |
| Nutrition | NUT | 18 |
| Ocean Oceanography | OCE | 104 |
| Office Equipment & Systems | OFI | 34 |
| On Publishing | PBR | 49 |
| Optics | OPT | 49 |
| Packaging | PAC | 30 |
| Paint Coatings | PAI | 42 |
| Pakistan | PK | 2 |
| Panama | PN | 1 |
| Paper | PAP | 83 |
| Papua New Guinea | PP | 1 |
| Paraguay | PY | 1 |
| Patent/Trademark/Copyright | PAT | 33 |
| Peru | PE | 1 |
| Petroleum Gas | PET | 134 |
| Pets | PES | 9 |
| Pharmaceutical | PHA | 131 |
| Philippines | PH | 4 |
| Philosophy | PHI | 46 |
| Photography | PHO | 33 |
| Physics (related sciences) | PHY | 96 |
| Plastics | PLA | 83 |
| Poland | PL | 1 |
| Politics | POL | 89 |
| Population | POP | 7 |
| Portugal | PO | 2 |
| Power (mainly electric) | POW | 21 |
| Printing | PRI | 70 |
| Psychology | PSY | 109 |
| Public Administration | PAD | 75 |
| Public Relations (see ADV) | PR | 10 |
| Publishing Assn | PSN | 6 |
| Publishing Publications | PUB | 61 |
| Pubr Periodicals Mags Anns etc | PPR | 1 |
| Railroad | RAI | 34 |
| Real Estate | REA | 28 |
| Recommend for Foreign Resident | GAI | 3 |
| Religion | REL | 105 |
| Research & Development | R&D | 90 |
| Research and Development | RAN | 17 |
| Restaurants | RES | 27 |
| Robotics | ROB | 6 |
| Romania | RM | 1 |
| Rubber | RUB | 37 |
| Russia | UR | 2 |
| Rwanda | RW | 1 |
| Science (nec) | SCI | 189 |
| Scotland UK | UE | 2 |
| Serbia and Montenegro (xYug..) | YU | 1 |
| Sex and related topics | SEX | 1 |
| Ships Shipping | SHI | 179 |
| Singapore | SG | 1 |
| Slovakia | SK | 1 |
| Slovenia | SI | 1 |
| Social (social clubs etc) | SCC | 94 |
| Social Studies Culture | SOS | 453 |
| Sociology | SOC | 136 |
| Sound/Audio/Hearing | SRR | 13 |
| South Africa | ZA | 3 |
| Space (also see AER) | SPA | 12 |
| Spain Spanish | ES | 1 |
| Sports Games | SPO | 187 |
| Sri Lanka | LK | 1 |
| Standards | STN | 18 |
| Statistics | STA | 32 |
| Switzerland | CH | 1 |
| Tax | TAX | 24 |
| Technology (nec) | TEC | 222 |
| Telecommunication Telephone | TEL | 41 |
| Textiles | TEX | 257 |
| Thailand | TH | 2 |
| Theater | THE | 25 |
| Tobacco | TOB | 8 |
| Toys/Games | TOY | 32 |
| Translation | TNS | 11 |
| Transportation | TRA | 138 |
| Travel Tourism | TRV | 202 |
| Tunisia | TN | 1 |
| Uganda | UG | 1 |
| Ukraine | UA | 1 |
| University College | UNI | 55 |
| USA | US | 37 |
| Venezuela | VE | 1 |
| Veterinary | VET | 109 |
| Vietnam | VN | 6 |
| Vision | VIS | 16 |
| Warehouse/Materials Handling | WAR | 24 |
| Waste Trash | WST | 40 |
| Water | WAT | 69 |
| Women | WOM | 70 |
| Zambia | ZM | 1 |
Alphabetical lists Prefecture lists
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