ISBN: International Standard Book Number

The ISBN identifies a book or other book-like product (such as an audiobook) in a specific format and edition, but also the publisher. If an ISBN is obtained from a company other than the official ISBN Agency, or one of its channel partners, that ISBN might not identify the publisher of the title accurately. This can have implications for doing business in the publishing industry supply chain.

The purpose of the ISBN is to establish and identify one title or edition of a title from one specific publisher and is unique to that edition, allowing for more efficient marketing of products by booksellers, libraries, universities, wholesalers and distributors.

If you are located in Australia, THORPE-Bowker is the official registration agency of the ISBN.

For more information about the ISBN standard, or if you are looking for the ISBN Agency in your jurisdiction visit the International ISBN Agency.


$44 Details
  • Identify one book in one format
  • Get Into Books In Print
  • Register yourself as Publisher
  • Appear in relevant databases
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10 ISBNs

$88 Details
  • Get benefits of one ISBN, plus
  • Each format needs its own ISBN
  • Savings on multiple ISBNs
  • Enough for multiple books
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100 ISBNs

$480 Details
  • Get benefits of ten ISBNs, plus
  • Save when publishing 4+ books
  • A great starter for Indie Publishers
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1,000 ISBNs

$3,035 Details
  • Blocks of 1,000 ISBNs are generally purchased by independent or small publishers, and is a quantity usually sufficient for publishing multiple versions of approximately 200 books (or editions of books).
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NEW PUBLISHERS: A new publisher setup fee of $55 will be added to your cart if you have not previously purchased ISBNs from Thorpe- Bowker. This covers the set up of your New Publisher account, including verifying details and linking your publisher details to all the appropriate Bowker products for maximum exposure.

Buy ISBNs with Barcodes

10 ISBNs
3 Barcodes
2 QRPlus Code

$219 Details
  • Save when purchasing multiple ISBNs and barcodes
  • Have enough ISBNs and barcodes for multiple book formats
  • Make your printed book interactive with a QRPlus code
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10 ISBNs
1 Barcode

$133 Details
  • Get savings on multiple ISBNs
  • Have enough ISBNs for multiple books or formats
  • A barcode makes your printed book easier to sell
Add to Cart

1 Barcode

$89 Details
  • The ISBN is the global standard for identifying titles
  • Having a barcode on your book will facilitate automated sales and inventory tracking
Add to Cart

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