China Library Classification (4th Edition) is divided into 22 basic categories, as follows:
I Marxism-Leninism, Mao Zedong Thought and Deng Xiaoping Theory.
Philosophy, religion
Introduction to social science
Politics, law
E military
F economy
G. Culture, science, education and sports
H. Language and writing
I. Literature
J art
History, geography
Introduction to natural science
Mathematical science and chemistry
P astronomy, earth science
Q bioscience
Medicine and health
American agricultural science
technology
U transportation
V. Aviation and aerospace
X. Environmental Science and Safety Science
Z comprehensive books
Extended data:
China Library Classification is a comprehensive classification widely used by libraries and intelligence agencies in China. It adopts mixed numbering of letters and numbers, and basically adopts hierarchical numbering method. Mainly used for book classification in large libraries.
China Library Classification is a representative large-scale comprehensive classification compiled and published after the founding of the People's Republic of China, and it is the most widely used classification system in domestic libraries today.
The first edition of China Library Classification was published in 1975, and the fourth edition was published in 1999. The fourth edition of the revised China Library Classification has added the category of classified materials, which is distinguished from the category of classified books by a "+",so it was officially renamed as China Library Classification, with the abbreviation unchanged.
The fourth edition of Library Classification of China comprehensively supplements new themes, expands the category system, and makes the classification keep pace with the development of science and technology. At the same time, standardize categories, improve the reference system and annotation system, adjust the category system, and add sub-tables, so as to obviously strengthen the expansion of categories and the accuracy of classification.
References:
Baidu Encyclopedia-China Library Classification