TSV
National Diet Library Classification - TSV
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
code slug name description
A politics-law-administration Politics, Law, Administration Classification for materials on political science, law, and public administration.
B parliamentary-publications Parliamentary Publications Classification for official records and materials of the National Diet and foreign parliaments.
C legal-materials Legal Materials Classification for materials on laws, government ordinances, and ministerial regulations.
D economics-industries Economics, Industries Classification for materials on economics, industry, commerce, and finance.
E social-affairs-labor Social Affairs, Labor Classification for materials on social issues, social welfare, and labor issues.
F education Education Classification for materials on pedagogy, school education, and social education.
G history-geography History, Geography Classification for materials on history, geography, topography, and biography.
H philosophy-religion Philosophy, Religion Classification for materials on philosophy, ethics, and religious studies.
K arts-language-literature Arts, Language, Literature Classification for materials on fine arts, music, theater, linguistics, and literature.
M-S science-technology Science and Technology Classification for materials on natural sciences, engineering, medicine, and agriculture.
U general-learning-journalism-libraries-bibliographies General Learning, Journalism, Libraries, Bibliographies Classification for materials on academic research, journalism, library science, and bibliography.
V special-collections Special Collections Classification for special collections gathered by specific themes or formats.
W old-rare-books Old and Rare Books Classification for classical texts, rare books, and antiquarian materials.
X kansai-library-materials Kansai Library Materials Classification for materials housed at the Kansai Branch of the National Diet Library.
Y childrens-books-special-materials Children's Books, Simplified Processing Materials, Textbooks, Special Reading Room Materials, Special Materials Classification for children's books, textbooks, and materials in special formats.
Z serial-publications Serial Publications Classification for periodically published materials such as magazines, newspapers, and yearbooks.