What kinds of books are there in the library? (Simple) Hurry up! ! ! !

At present, the classification of books in regular libraries basically follows the China Library Classification, with 22 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