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What is an ISBN and does my book need one?

ISBN is the acronym for International Standard Book Number. This 10 or 13-digit number identifies a specific book, an edition of a book, or a book-like product (such as an audiobook). Since 1970 each published book requires a unique ISBN, and so your book will need to have its own. 

We will provide a unique ISBN number for your book as part of our publication packages, and any additional formats (such as ePub, mobi, pdf) will be given its own ISBN.

If your book is published elsewhere and you're looking to re-publish a new edition, this will also require a new ISBN as it's an entirely new publication.

Related Questions: eBook and Paperback Publication (General)