# Nippon Decimal Classification

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Nippon_Decimal_Classification
> Markdown URL: https://mediated.wiki/source/Nippon_Decimal_Classification.md
> Source: https://en.wikipedia.org/wiki/Nippon_Decimal_Classification
> Source revision: 1299897689
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

The **Nippon Decimal Classification** (日本十進分類法, *Nihonjisshinbunruihō*) (**NDC**, also called the **Nippon Decimal System**) is a system of [library classification](/source/Library_classification) developed for mainly Japanese-language books maintained and revised by the [Japan Library Association](/source/Japan_Library_Association) since 1948. Originally developed in 1929 by Kiyoshi Mori, the 10th and latest edition of this system was published in 2014. The decimal notation system is similar to the [Dewey Decimal System](/source/Dewey_Decimal_Classification), and the order of main classes is inspired from the [Cutter Expansive Classification](/source/Cutter_Expansive_Classification). The system is based upon using a three digit number to classify subjects, where more digits can be added if necessary and a decimal point is used to separate the third and fourth digit. The first division level is called a class, the second level is called a division, and the third level is called a section. Each '1-9' digit is used to represent a specific category, with the digit '0' being used to represent general works.

## Classes

### 000

The General category contains books that contain general information, rather than information about specific topics. The sub-categories of the General category are:

- 010 Libraries, [Library & information science](/source/Library_and_information_science)
- 020 Books, [Bibliography](/source/Bibliography)
- 030 Encyclopaedias
- 040 General collected essays
- 050 General [serial publications](/source/Periodical_literature)
- 060 General societies
- 070 Journalism, Newspapers
- 080 General collections
- 090 [Rare books](/source/Rare_books), Local collections, [Special collections](/source/Special_collections)

### 100

The Philosophy category contains books that contain information regarding philosophy, religion, and psychology. The sub-categories of the Philosophy category are:

- 110 Special treatises on philosophy
- 120 [Oriental philosophy](/source/Oriental_philosophy)
- 130 [Western philosophy](/source/Western_philosophy)
- 140 [Psychology](/source/Psychology)
- 150 Ethics & morals
- 160 Religion
- 170 [Shinto](/source/Shinto)
- 180 [Buddhism](/source/Buddhism)
- 190 Christianity

### 200

The History category contains books that contain information regarding local and foreign history. The sub-categories of the History category are:

- 210 [History of Japan](/source/History_of_Japan)
- 220 [History of Asia](/source/History_of_Asia)
- 230 [History of Europe](/source/History_of_Europe)
- 240 [History of Africa](/source/History_of_Africa)
- 250 [History of North America](/source/History_of_North_America)
- 260 [History of South America](/source/History_of_South_America)
- 270 [History of Oceania](/source/History_of_Oceania) & [Polar region](/source/Polar_regions)
- 280 Biography
- 290 [Geography](/source/Geography), [Topography](/source/Topography), Travel

### 300

The Social Sciences category contains books that contain information regarding modern day society, such as government systems and cultural traditions. The sub-categories of the Social Sciences category are:

- 310 Politics
- 320 Law
- 330 Economics
- 340 Finance
- 350 Statistics
- 360 Sociology
- 370 Education
- 380 Customs, [Folklore](/source/Folklore), [Ethnology](/source/Ethnology)
- 390 National defence, [Military science](/source/Military_science)

### 400

The Natural Sciences category contains books that contain information regarding the natural world, such as plants, animals, and natural laws, such as math and physics. The sub-categories of the Natural Sciences category are:

- 410 Mathematics
- 420 [Physics](/source/Physics)
- 430 [Chemistry](/source/Chemistry)
- 440 [Astronomy](/source/Astronomy), [Space science](/source/Space_science)
- 450 [Earth science](/source/Earth_science)
- 460 [Biology](/source/Biology)
- 470 [Botany](/source/Botany)
- 480 [Zoology](/source/Zoology)
- 490 Medicine, [Pharmacology](/source/Pharmacology)

### 500

The Technology & Engineering category contains books that contain information regarding man-made scientific achievements. The sub-categories of the Technology & Engineering category are:

- 510 Construction, Civil engineering
- 520 Architecture
- 530 Mechanical engineering, [Nuclear engineering](/source/Nuclear_engineering)
- 540 [Electrical](/source/Electrical_engineering) & [Electronic engineering](/source/Electronic_engineering)
- 550 Maritime & [Naval engineering](/source/Naval_engineer)
- 560 Metal & [Mining engineering](/source/Mining_engineering)
- 570 [Chemical technology](/source/Chemical_technology)
- 580 Manufacturing
- 590 [Domestic arts and sciences](/source/Domestic_science)

### 600

The Industry and Commerce category contains books that contain information regarding business, products, transportation systems, and money. The sub-categories of the Industry and Commerce category are:

- 610 Agriculture
- 620 Horticulture
- 630 [Silk industry](/source/Sericulture)
- 640 [Animal husbandry](/source/Animal_husbandry)
- 650 [Forestry](/source/Forestry)
- 660 Fishing
- 670 Commerce
- 680 Transportation & Traffic
- 690 Communications

### 700

The Arts category contains books that contain information regarding various art forms, such as paintings, writing, and music. The sub-categories of the Arts category are:

- 710 [Plastic arts](/source/Plastic_arts) (sculpture)
- 720 Painting & [Calligraphy](/source/Calligraphy)
- 730 [Engraving](/source/Engraving)
- 740 Photography & Printing
- 750 [Craft](/source/Craft)
- 760 Music & Dance
- 770 Theatre, Motion Pictures
- 780 [Sports](/source/Sports), [Physical Education](/source/Physical_Education)
- 790 [Recreation](/source/Recreation), Amusements

### 800

The Language category contains books that contain information regarding various languages spoken around the world. The sub-categories of the Language category are:

- 810 Japanese
- 820 Chinese
- 830 English
- 840 German
- 850 French
- 860 Spanish
- 870 Italian
- 880 Russian
- 890 Other languages

### 900

The Literature category contains books with fictional content, such as romance novels and adventure stories. The sub-categories of the Literature category are:

- 910 [Japanese literature](/source/Japanese_literature)
- 920 [Chinese literature](/source/Chinese_literature)
- 930 English & [American literature](/source/American_literature)
- 940 [German literature](/source/German_literature)
- 950 [French literature](/source/French_literature)
- 960 [Spanish literature](/source/Spanish_literature)
- 970 [Italian literature](/source/Italian_literature)
- 980 Russian & [Soviet literature](/source/Soviet_literature)
- 990 Other language literature

## External links

- [Japan Library Association](http://www.jla.or.jp/index-e.html)
- [CyberLibrarian](http://www.asahi-net.or.jp/~ax2s-kmtn/ref/ndc/e_ndc.html)

---
Adapted from the Wikipedia article [Nippon Decimal Classification](https://en.wikipedia.org/wiki/Nippon_Decimal_Classification) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Nippon_Decimal_Classification?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.