ISBN code

The International Standard Book Number (ISBN) is an international unified numbering system to meet the needs of book publishing and management and facilitate the international exchange and statistics of publications. It consists of a group of ten digits with the code "ISBN" (978), which is used to identify the country or language, publishing institution, title, version and binding method of the publication. This set of figures can also be said to be the representative figures of books. ISBN helps to simplify the book distribution and management procedures, and facilitates publication statistics and international exchanges. Publishers, booksellers and libraries all over the world can quickly and effectively identify a book, its version and binding form by using the international standard book number. No matter what language the original book is written in, it can be ordered by telegram or telephone fax and processed by computer.

When making a barcode, the code of the book in the EAN code is 978, that is, just change the country code part of the EAN to 978, and then recalculate the check code, which is the ISBN barcode. Other processes are the same. The picture shows the structure of ISBN. Simply put, the corresponding relationship between ISBN and EAN is: 978+ISBN first 9 codes +EAN check code.

ISBN is the abbreviation of International Standard Book Number, and it is the international unified numbering method for publications published by ISO 1972. The copyright pages of regular books all have ISBN numbers. ISBN is the abbreviation of several English letters of the international standard for books, namely the international standard book number. It consists of 10 digits and consists of four parts: group number, publisher number, book title and inspection number, which are connected by "-".

ISBN number consists of 10 digits, and * * * is divided into four parts:

1. Group number: represents the country, geographical region and language of the publisher. China's group number is "7".

2. Publisher number: represents a specific publisher (publishing house, publishing company, etc.). ) belongs to the group. Set and assigned by the ISBN center of a country or region, 1-7 digits.

3. Title: The title is the number given to each publication by the publisher.

4. Inspection number: the inspection number is the last digit of the ISBN number. You can check whether the ISBN number is correct, that is, multiply the number of ISBN 1-9 by the nine digits of 10-2, and add the inspection number to the sum of these products. If it can be divisible by 1 1, the ISBN number will be. The formula is 7 *10+3 * 9+0 * 8+5 * 7+0 * 6+1* 5+5 * 4+6 * 3+8 * 2+7 =198,198. The check number can only be 1 digit, and when it is 10, it is recorded as Roman numeral X.