The full English name of ISBN is ISBN.
The ISBN consists of ten digits. Divided into four segments by three short horizontal lines, each segment has a different meaning.
The first number field is the area code, also known as the group identifier. The shortest number is one digit, and the longest number is five digits, generally taking into account the language, country and region. The countries and regions that voluntarily apply to participate in ISBN system are divided into several regions, and each region has a fixed code: 0, 1 for English. The countries that use these two codes are Australia, Canada, Ireland, New Zealand, Puerto Rico, South Africa, Britain, the United States, Zimbabwe and so on. Stands for French, which is used in French-speaking areas of France, Luxembourg, Belgium, Canada and Switzerland; 3 stands for German and is used in Germany, Austria and German-speaking Switzerland; 4 is the code of Japanese publications; 5 is the code for Russian publications; 7 is the code used in China publications.
The group number is divided into five grades, with the length of 1-5 digits, and the specific setting range is as follows:
Group number number
Setting range
Number of groups that can be allocated
Number of allowed publications of each group number (species)
Total number of publications per document (species)
one
0~7
eight
1 100 million
800 million
two
80~94
15
0. 1 100 million
65438+50 million
The position of three
950~997
48
0.0 1 100 million
48 million
four
9980~9989
10
0.00 1 billion
0.0 1 100 million
Five people
99900~99999
100
0.000 1 billion
0.0 1 100 million
total
18 1
100 billion
The second segment number is the publisher identifier, which is assigned by the ISBN center of the country or region. The allowable value range is 2-5 digits. The bigger the publishing house, the more books it publishes, and the smaller the number.
The third paragraph is that the book number (title identifier) is given by the publishers themselves, and the book number of each publisher is fixed. The shortest one and the longest six. The bigger the publishing house, the more books published and the longer the serial number.
The tenth digit is the parity bit of the electronic computer. Fix one bit, the starting and ending number is 0- 10, and 10 is replaced by X.
Four numbers should be connected by a hyphen (-) (for example: 2-02-033598-0). However, some library integration systems can't automatically assign hyphens, and library catalogers don't know much about the segmentation of ISBN, so people often omit hyphens in bibliographic records (for example, 2020335980).
The calibration method of standard ISBN is weighting method, that is, 9 digits from 10 to 2 are respectively multiplied by the first 9 digits of standard ISBN, and the sum of the product plus the check code is divided by the constant 1 1. If it is separable, the number of instructions is correct; If not, ISBN is wrong.
Scheme determination of 13 international standard book number
At the beginning of this year, the scheme of 13-digit ISBN system reported twice by this newspaper was finally determined. Last month, the American Book Industry Research Group (BISG) unanimously adopted a statement, requesting that the EAN barcode of 13 be the only barcode of books and book-related products in 2005 1. At the same time, the organization suggested that the International Standard Book Number (ISBN) be expanded from 1 in October 2007 to 13.
The call for early adoption of the 13 digit ISBN system has a long history, because it can help the book industry exchange electronic information with business partners in other industries around the world. According to the report of Publisher Weekly on September 25th, this summer, the new draft plan was revised as many as 12 times. Jeff Abraham, the executive chairman of the group, said that the new plan was "an evolution, not a revolution", and he denied that the ISBN upgrade would bring the so-called "millennium bug" problem.