The Standard Book Number (SBN) is a commercial system using nine-digit code numbers to identify books. In 1965, British bookseller and stationers WHSmith announced plans to implement a standard numbering system for its books. [1] .

The registration group or identifier group is the second element in a 13-digit ISBN (first element in a 10-digit ISBN) and indicates the country, geographic region, or language area where a book was published. [1] The element ranges from one to five numerical digits. [1]

The International Standard Book Number, ISBN, is a unique [1] commercial book identifier barcode. The ISBN system was created in the United Kingdom, in 1966, by the booksellers and stationers W.H. Smith.

ISO standard, publication identifier; Subclass of: European Article Number, URN, non-persistent identifier, persistent identifier Short name: ISBN Dey replace: Standard Book Number Studied in: library science Maintain by: the International ISBN Agency Identifies: book edition Stack Exchange tag: https://stackoverflow.com/tags/isbn

International Standard Book Number (ISBN), in bibliography, 10- or 13-digit number assigned before publication to a book or edition thereof, which identifies the work’s national, geographic, language, or other convenient group and its publisher, title, edition, and volume number.

The International Standard Book Number, ISBN, is a unique commercial book identifier barcode. The ISBN system was created in the United Kingdom, in 1966, by the booksellers and stationers W.H. Smith.

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Template:Infobox identifier The International Standard Book Number (ISBN) is a unique [a] [b] numeric commercial book identifier. An ISBN is 123 assigned to each edition and variation (except reprintings) of a book.

In addition to identifying (a particular edition of) a book, ISBNs allow one to search for the book, both at libraries and bookstores. You can enter an ISBN on this Wikipedia ISBN search page. Spaces and hyphens in the ISBN do not matter. ISBN links, or the ISBN search, take users to a special book source page, Wikipedia:Book sources.

An ISBN is essentially a product identifier used by publishers, booksellers, libraries, internet retailers and other supply chain participants for ordering, listing, sales records and stock control purposes.