In the book classification, what does "the first category of 22 categories" mean?

Book Classification The Chinese Library Book Classification is divided into five basic categories and twenty-two basic categories.

These five basic categories are:

1, Marxism, Leninism, Mao Zedong Thought, Deng Xiaoping Theory; 2. Philosophy;

3. Social science;

4. Natural science

5, comprehensive class …

The twenty-two basic categories are:

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

philosophy

social science

Political law

E military

F economy

G. Culture, science, education and sports

H language

I. Literature

J art

historical geography

Introduction to natural science

Mathematical science and chemistry

P astronomy

Q bioscience

Medicine and health

American agricultural science

technology

U transportation

V. Aerospace

X. Environmental science

Z comprehensive books

The above 22 basic categories are called first-class categories. On this basis, according to the different properties of books, they are divided into several categories, called second class, then third class, fourth class and fifth class.

We can take the first category, literature, as an example to understand how the system structure of book classification develops.

First-class category of literature ...........................

...................... Subcategory of Literary Theory.

1 ...................... Subcategory of World Literature

2 China Literature ...................... Subcategory

2 1 Portfolio ...................... Category III

22. Poetry and verse are divided into three categories in Britain. ....................

23 drama ........................ three categories.

24 novels ........................ three categories.

Four categories of ancient works of ..................

.............'s Works after the May 4th Movement in 246 Category IV.

Four categories of ...............'s works after the founding of the People's Republic of China.

.4 Chapter V Novel Classification ................

.5 New novels and novellas ... five categories.

.6 Five New Short Stories ............

.8 Five Stories of ....................