At present, there are two methods commonly used in book classification in China, namely, the Ketu method and the China Library Classification, which is based on the actual situation of primary and secondary schools.
Ketu method and China Library Classification are commonly used book classifications, Ketu method refers to the library classification of China Academy of Sciences, and China Library Classification refers to the library classification of China.
Brief Introduction of China Library Classification
China Library Classification (CLC) is a comprehensive classification widely used by libraries and intelligence agencies in China. By 1999, CLC has been revised four times (focusing on F economy, TN radio electronics, telecommunications technology, TP automation technology and computer technology).
China Library Classification is divided into five basic classifications and 22 categories. Chinese phonetic alphabet and Arabic numerals are mixed, one letter represents a big category, the alphabetical order reflects the order of big categories, and numbers are used to mark letters. In order to adapt to the development of industrial technology and the classification of such documents, the second category of industrial technology uses two letters.
The category names of China Library Classification are as follows:
Marxism-Leninism and Mao Zedong Thought.
I Marxism-Leninism and Mao Zedong Thought.
philosophy
philosophy
social science
C introduction to social science?
D politics and law?
natural science
Introduction to natural science?
O mathematical science and chemistry?
P astronomy, earth science?
Q biological science?
R medicine, health?
Agricultural science?
T industrial technology?
U traffic?
5. Aerospace?
X. Environmental Science and Labor Protection Science
Comprehensive books
Z comprehensive books
Brief Table of China Library Classification
Brief Introduction of Library Classification of China Academy of Sciences
Like China Library Classification, Kotu Law divides knowledge categories into five categories, but on the basis of the order of these five basic categories, 25 basic categories are formed. The classification numbers of categories at all levels adopt the simple Arabic numeral system, which is simple, concise, easy to write and remember. The figures are divided into two parts. The first part adopts the sequential system, and 25 categories and their main categories are allocated from 00 to 99.
The name of Ketu Legal Department is as follows:
00 Marxism-Leninism and Mao Zedong Thought.
10 philosophy
20 social sciences
2 1 history
27 economics, economics
3 1 Political and social life
34 Law and Jurisprudence
36 military, military science
Culture, science and education
4 1 Linguistics
42 literature
48 art
Atheism and religion
50 natural science
5 1 mathematics
52 mechanics
53 physics
54 chemistry
55 astronomy
Geology and geographical sciences
58 biological sciences
6 1 medicine and health
agro-science
7 1 technology science
90 comprehensive books