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ISBN Numbers


What is an ISBN number?

The International Standard Book Number (ISBN) is a 13-digit number that uniquely identifies (e)books published internationally.


Want to know how to apply for your ISBN free of charge?


Why do we need an ISBN?

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.


What does an ISBN look like?

Every ISBN consists of thirteen digits. The thirteen-digit number is divided into four parts of variable length, each part separated by a dash.


Does the ISBN have any meaning embedded in the numbers?

The four parts of an ISBN are as follows:

  • Group or country identifier which identifies a national or geographic grouping of publishers;

  • Publisher identifier which identifies a particular publisher within a group;

  • Title identifier which identifies a particular title or edition of a title;

  • Check digit is the single digit at the end of the ISBN which validates the ISBN.


How many ISBN Numbers do I need?

You will need an ISBN number for each format of the book you plan to (self)publish. For authors publishing electronic versions (eBooks) you will actually need an ISBN number for both MOBI and ePUB versions of your eBook.Here is a summary of the different versions of the book that will each require a unique ISBN number:

  1. Paperback

  2. eBook (ePUB)

  3. eBook (MOBI)

  4. AudioBook


How much does ISBN application cost?

ISBN numbers vary in cost depending on which country you live in. Here at MyeBook we will help issue you ISBN numbers for your book, free of charge! That's right, complete our South African ISBN application form and email the completed form back to us.


Download the ISBN application form 

Download the ISBN application form here


  • Note - This service is for authors from South Africa only.

  • Please complete and return the form in MS word via email.


For Free?

Yup, that's right, we will help you apply for your own unique ISBN numbers for free. Get your numbers reserved now!


For those of you who might be in a hurry or just curious by nature, click here to learn how to apply for your own ISBN numbers




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