What are the five categories and twenty-two categories of China Library Classification (4th Edition)?

There are five parts and 22 basic categories in China Library Classification, which is referred to as Chinese Library Classification.

These five categories are Marxism-Leninism, Mao Zedong Thought, philosophy, social science, natural science and comprehensive books.

22 basic categories, as follows:

I Marxism-Leninism, Mao Zedong Thought and Deng Xiaoping Theory.

b？ Philosophy, religion

Introduction to social science

d？ Politics, law

e？ military affairs

f？ economy

g？ Culture, science, education, sports

h？ Language, writing

Me? literature

j？ art

k？ History, geography

n？ Introduction to natural science

o？ Mathematical science and chemistry

P astronomy, earth science

q？ Biological Science

r？ Medicine and health

s？ agro-science

t？ technology

u？ transport

v？ Aviation and aerospace

X environmental science, labor protection science (safety science)

Z comprehensive books

Extended data

Book classification, also called book classification thesaurus, is classified according to the contents, forms, genres and readers' uses. Under the guidance of certain philosophical thoughts, the books of various disciplines are divided into several categories according to their subject contents by using the principle of knowledge classification and logical methods. Each category is divided into many subclasses, and each subclass is divided into molecular subclasses. Finally, every kind of book can be divided into certain categories, and each category has a category number. Classified thesaurus is a collection of hierarchical classification numbers and categories.

References:

Classification of Baidu Encyclopedia China Library