Why do books have two isbn numbers

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why do books have two isbn numbers

Goodreads Librarians Group - I found 2 different book titles that share the same ISBN number. Showing 1-12 of 12

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How To Get An ISBN Number For A Self-Published Book

International Standard Book Number

A definition and explanation of the ISBN system for book identification, and tips on using them in online book searches. It refers to a specific edition. Publishers, libraries, and booksellers both in retail stores and online find ISBNs invaluable. A book shopper can also find them very helpful. For example, paperback and hardcover versions of the same title will have different ISBNs.

We've updated the Topics page of our website to better organize and share our expert content. Read more about it here. I've found the exact same book title, edition, author, publication date, page numbers, everything on bookholders. Would it be better to order these and have them available faster, or order the exact ones from the CoOp and have to wait a while before my order is processed? I have a paypal account, and it would be much easier for me to pay on bookholders. August edited August

An ISBN is assigned to each separate edition and variation except reprintings of a publication. For example, an e-book , a paperback and a hardcover edition of the same book will each have a different ISBN. The method of assigning an ISBN is nation-specific and varies between countries, often depending on how large the publishing industry is within a country. Privately published books sometimes appear without an ISBN. ISBN agency R. The ISO on-line facility only refers back to For example, the second edition of Mr.

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ISBNs were 10 digits in length up to the end of December , but since 1 January they now always consist of 13 digits. ISBNs are calculated using a specific mathematical formula and include a check digit to validate the number.

What is an ISBN? What is the purpose of an ISBN? What is the format of the ISBN? Does the ISBN have any meaning imbedded in the numbers? Who can assign ISBNs to a publisher? Who is eligible for an ISBN?

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