The Chinese standard book number * * * is divided into two parts. The first part is ISBN, which is the main part; The second part is the basic category number and category number of China Library Classification. Except for books about industrial technology, the category number uses one letter. The serial number is the serial number of books published by the same publishing house under the same subject category, which is compiled by the publishing house itself. Use an intermediate point (? ) separated. The first part and the second part are arranged in two rows, or they may be separated by diagonal lines and arranged in one row. For example: ISBN 7-144-00316-x/TP? 340。

Summary of China Library Classification (Fourth Edition)

A

Marxism, Leninism,

Mao Zedong Thought, Deng Xiaoping Theory.

Knock down (network word)

Mineral engineering

B

Philosophy, religion

The seventh note of the major scale.

Oil and gas industry

C

Introduction to social science

Southern France (short for French Southern Territories)

metallurgical industry

D

Politics, law

Togo

Metallurgy and metal technology

E

military affairs

Thailand (Thailand)

Machinery and instrument industry

F

economy

turbojet

Weapons industry

G

Culture, science, education, sports

tank

Energy and power engineering

H

Language, writing

Symbol of element thallium

Nuclear engineering technology

I

literature

thulium (Tm)

electrotechnician

J

art

long ton

Radio electronics, telecommunications technology

K

History, geography

Internet domain name code of East Timor

Automation technology and computer technology

ordinary

Introduction to natural science

Circuit switching off time

chemical industry

O

Mathematical science and chemistry

Timesharing (same as time sharing)

Light industry, handicraft industry

P

Astronomy, earth science

labour union

building science

Q

Biological Science

TV

water conservancy project

rare

Medicine and health

U

transport

S

agro-science

V

Aviation and aerospace

T

technology

X

Environmental science and safety science

Tuberculosis (tuberculosis)

General industrial technology

Z

Comprehensive books

Please refer to /lib_class.html for detailed classification.

This is the best book classification method in China.