The ISBN (International Standard Book Number) is a 10 or 13-digit number which uniquely identifies books and book-like products published internationally. Each number identifies a unique edition of a publication, from one specific publisher. For example:

• 0060254920 (example of 10-digit ISBN)
  
• 9780521260619 (example of 13-digit ISBN)

The ISSN (International Standard Serial Number) is an 8-digit number which uniquely identifies periodical publications, including electronic serials. For example:

• 03037207 (example of ISSN)

We also have other numbers in this index:-

• ISMN (music number) - e.g. M001081634
• video publisher's number - e.g. C2579
• music recording issue number - e.g. BLP4146