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Barcode encyclopedia : Symbology issn

ISSN - special version of EAN barcode. ISSN = International serial number

This barcode begins with 977.

All information about EAN, UPC : please look EAN - basic information.

issn - International Standard Serial Numbering - The ISSN system is used for identifying serial publications (print and non-print); these are publications like magazines, newpapers, annual reports, etc. that are published at regular intervals. A single ISSN uniquely identifies a title regardless of language or country in which published. Administration of ISSN
The coordination of the ISSN is international, with registration initiated at the national level where serials are published. Library of Congress ISSN site at www.lcweb.loc.gov/issn or ISSN International Headquarters at www.issn.org or http://www.loc.gov/issn/
Library of Congress National Serials Data Program Washington, D.C. 20540-4160 Tel.: (202) 707-6452 Fax: (202) 707-6333 Email: issn@loc.gov
An ISSN is eight digits long. Always displayed this way: ISSN 1234-5679. First seven digits serve as the title number, last number is checksum.
Advantages of Use
Why Do Some ISSN End in an "X"?
An ISSN is composed of eight digits: the arabic numerals 0 to 9, except that in the case of the last digit, which is a check digit, the upper case X can appear. The purpose of the check digit is to guard against errors caused by the incorrect transcription of the ISSN. The method of determining the check digit for the ISSN is the modulus 11 basis, using the weighting factors 8 to 2. In the case of the ISSN, the Roman numeral X is used where the check digit calculation results in a remainder of 10.
Why Do Some ISSN End in an "X"?


ISBN or International Standard Book Number is the book counterpart to the ISSN. It is a national and international standard identification number for uniquely identifying books, i.e., publications that are not intended to continue indefinitely.

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