LDAPWiki: International Standard Book Number

Overview#

International Standard Book Number (ISBN) is a numeric Unique Identifier for commercial books represented as an EAN.

International Standard Book Number is assigned to each edition and variation (except reprintings) of a book. For example, an ebook, a paperback, and a hardcover edition of the same book would each have a different International Standard Book Numbers.

International Standard Book Number is 13 digits long if assigned on or after 1 January 2007, and 10 digits long if assigned before 2007.

An International Standard Book Number consists of 4 parts (if it is a 10 digit ISBN) or 5 parts (for a 13 digit ISBN). The parts of a 10-digit ISBN and the corresponding EAN‑13 and barcode. Note the different check digits in each. The part of the EAN‑13 labeled "EAN" is the Bookland country code.

Prefix element (for a 13-digit ISBN) - a GS1 Company Prefix: so far 978 or 979 have been made available by GS1
Registration group element– this identifies the particular country, geographical region, or language area participating in the ISBN system. This element may be between 1 and 5 digits in length
Registrant element - this identifies the particular publisher or imprint. This may be up to 7 digits in length
Publication element – this identifies the particular edition and format of a specific title. This may be up to 6 digits in length
Check Digit – this is always the final single digit that mathematically validates the rest of the number. It is calculated using a Modulus 10 system with alternate weights of 1 and 3.

More Information#

There might be more information for this subject on one of the following:

[#1] - International_Standard_Book_Number - based on information obtained 2017-10-28-
[#2] - What is an ISBN? - based on information obtained 2018-09-07-