Publishers can clearly identify all non-periodical books by the international standard book number. An ISBN has only one or one corresponding publication.
If the new edition doesn't change much on the basis of the original edition, it won't get a new ISBN when it is published. When the paperback edition is changed to the hardcover edition, the original ISBN number should also be recovered.
Extended data
ISBN number consists of 13 digits, separated by four connecting digits or four spaces, and each group of digits has a fixed meaning.
Group 1: 978 or 979;
The second group: country, language or location code;
The third group: publishing house code: distributed to publishing houses by ISBN distribution centers in various countries or regions.
The fourth group: book sequence code: the code of this publication is given by the publishing house.
The fifth group: check code: only one digit, from 0 to 9.
1982 China participated in the ISBN system and established the China ISBN center (located in the General Administration of Press and Publication). China Standard Book Number was implemented from 1 98765438+1October1,and the original unified book number was completely replaced by 1988 1.
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.
The class number and the species number are separated by a middle dot (). 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.
Baidu encyclopedia-international standard book number