An International Standard Serial Number (ISSN) is an unique 8-digit code used to identify serials (any publication issued in successive parts): newspapers, journals, magazines and periodicals of all kinds, either in print or as electronic media. It can be very helpful in distinguishing between serials with the same title.
An ISSN takes the form ISSN followed by two groups four numbers separated by a hyphen, for example
ISSN 1234-5678
The ISSN is used to uniquely identify a serial and has no other meaning.
Further Reading
The International Standard Serial Number Centre
