Differences between ISSN and ISBN codes

ISBN and ISSN has a wide range of uses, is currently internationally recognized book code and journal number barcode, are also transformed from EAN. ISSN and ISBN only one letter difference, but the meaning and role are different, ISSN is used for periodicals, is the international series number, ISBN is used for books, is the international standard book number, the two are the main symbol to identify publications, is also the "identity card" of publications. These two numbers indicate that the book has reached international standards and that it has been registered with the ISBN and ISSN international organizations.

When making bar codes, the code of the book class in EAN code is 978. As long as the country code of EAN is changed to 978 and the check code is recalculated, it is ISBN barcode. In short, the corresponding relationship between ISBN and EAN is: 978 + the first 9 codes of ISBN + EAN check code. Isbn numbers are made up of 13 digits, divided by five connection numbers or four Spaces. Each group of digits has a fixed meaning. The first group number segment 978 or 979; The second group of numbers is the country, language or location code; The third group of numbers is the publishing house code, which is distributed to each publishing house by the International Standard Book number distribution center of each country or region. The fourth group of numbers is the sequence code, which is specifically given by the publisher. The fifth number segment is the check code. There's only one digit, from zero to nine.

ISSN stands for International Standard Journal number. They are usually issued under a certain title, indicating the volume, number, or issue number as "year, month, day", "month", or number. Most of the common periodicals, magazines, series and annual journals in the market belong to the numbering and coding range of the international standard journal number. When each journal is registered and deregistered, it gets an exclusive ISSN, and an ISSN only corresponds to a journal name. And a publication title only requires one ISSN. So when the name of the journal changes, you need to apply for another ISSN. If the journal ceases publication, the deleted ISSN will not be used by other journals.

Each ISSN system consists of eight digits, which are divided into two four-digit segments, and the last digit in the last segment is the check number. The corresponding relationship between ISSN and EAN is 977 + first 7 ISSN codes + 00 + EAN check codes.

The above is a brief introduction about ISSN and ISBN. For more information about bar codes, please continue to pay attention to us.