INI

National Diet Library Classification - INI

The National Diet Library Classification (NDLC) is a unique classification system used by the National Diet Library of Japan since 1963, employing a mixed non-decimal classification method combining Roman letters and numbers. It is characterized by its emphasis on social sciences and consists of 16 major categories ranging from politics, law, and administration to science and technology, and serial publications. Designed for the efficient management and organization of vast collections gathered from both domestic and international sources, it serves as a fundamental classification system for Japan's national library system.

library classification National Diet Library bibliography collection management

[item.politics-law-administration]
code=A
slug=politics-law-administration
name=Politics, Law, Administration
description=Classification for materials on political science, law, and public administration.

[item.parliamentary-publications]
code=B
slug=parliamentary-publications
name=Parliamentary Publications
description=Classification for official records and materials of the National Diet and foreign parliaments.

[item.legal-materials]
code=C
slug=legal-materials
name=Legal Materials
description=Classification for materials on laws, government ordinances, and ministerial regulations.

[item.economics-industries]
code=D
slug=economics-industries
name=Economics, Industries
description=Classification for materials on economics, industry, commerce, and finance.

[item.social-affairs-labor]
code=E
slug=social-affairs-labor
name=Social Affairs, Labor
description=Classification for materials on social issues, social welfare, and labor issues.

[item.education]
code=F
slug=education
name=Education
description=Classification for materials on pedagogy, school education, and social education.

[item.history-geography]
code=G
slug=history-geography
name=History, Geography
description=Classification for materials on history, geography, topography, and biography.

[item.philosophy-religion]
code=H
slug=philosophy-religion
name=Philosophy, Religion
description=Classification for materials on philosophy, ethics, and religious studies.

[item.arts-language-literature]
code=K
slug=arts-language-literature
name=Arts, Language, Literature
description=Classification for materials on fine arts, music, theater, linguistics, and literature.

[item.science-technology]
code=M-S
slug=science-technology
name=Science and Technology
description=Classification for materials on natural sciences, engineering, medicine, and agriculture.

[item.general-learning-journalism-libraries-bibliographies]
code=U
slug=general-learning-journalism-libraries-bibliographies
name=General Learning, Journalism, Libraries, Bibliographies
description=Classification for materials on academic research, journalism, library science, and bibliography.

[item.special-collections]
code=V
slug=special-collections
name=Special Collections
description=Classification for special collections gathered by specific themes or formats.

[item.old-rare-books]
code=W
slug=old-rare-books
name=Old and Rare Books
description=Classification for classical texts, rare books, and antiquarian materials.

[item.kansai-library-materials]
code=X
slug=kansai-library-materials
name=Kansai Library Materials
description=Classification for materials housed at the Kansai Branch of the National Diet Library.

[item.childrens-books-special-materials]
code=Y
slug=childrens-books-special-materials
name=Children's Books, Simplified Processing Materials, Textbooks, Special Reading Room Materials, Special Materials
description=Classification for children's books, textbooks, and materials in special formats.

[item.serial-publications]
code=Z
slug=serial-publications
name=Serial Publications
description=Classification for periodically published materials such as magazines, newspapers, and yearbooks.