Podcast Episode

You Don’t Need to Buy ISBNs

The Wordslinger Podcast··12 September 2026·16 min

About this episode

A WORDSLINGER 10-SHOTDo indie authors really need to buy their own ISBNs? For most self-published authors, the answer is probably no.In this episode, J. Kevin Tumlinson breaks down the real differences between purchasing your own ISBN and using a free ISBN from services such as Draft2Digital or Amazon. We’ll look at what “publisher of record” actually means, whether an ISBN affects copyright or ownership, how ISBNs work across paperback, hardcover, ebook, and audiobook editions, and when paying for your own ISBN might actually make sense.If you’re building an indie publishing career, trying to control costs, or wondering whether owning your ISBN gives you some hidden advantage, this episode will help you make a smarter decision.00:00 Should indie authors buy their own ISBNs? 01:02 What “publisher of record” actually means 01:52 ISBNs, Bowker, and the cost of buying your own 02:48 Why every format needs its own ISBN 03:56 Moving your ISBN between distributors 05:19 ISBNs, bookstores, libraries, and wide distribution 06:30 Using free ISBNs with Draft2Digital 07:15 Metadata and long-term catalog control 08:13 The cost of owning your ISBNs 09:03 Do you even need an ISBN? 09:47 What an ISBN actually does 10:22 What happens if you switch ISBNs later 11:20 Why Kevin recommends free ISBNs for most authors 12:06 A warning about platform-specific free ISBNs 13:04 Kevin’s recommendation for indie authors 14:49 Final thoughts and questions about ISBNsVisit the Knovelton Bookshop at knoveltonbooks.comGET 15% OFF YOUR ENTIRE ORDER AT CHECKOUT WITH CODE STORYCUTSIf you’re a writer trying to build a career, publish smarter, improve your craft, and navigate the business of being an author, subscribe to the Wordslinger channel. This is where writers come for practical, experience-driven guidance on writing, publishing, marketing, and building a sustainable creative career.FIND KEVIN:Find Kevin and his books: https://kevintumlinson.comJoin Kevin on Substack: https://kevintumlinson.substack.comWordslinger Podcast home page: https://wordslingerpodcast.comSERVICES FOR AUTHORS:Polish your writing and make it ready for publishing with ProWritingAid: https://tidd.ly/3NCdlk5Publish your book to every major retailer online, get your book into print and ebook, and get support the whole way at Draft2Digital: https://draft2digital.com/wordslingerFind a virtual assistant to help you market your books (and more!) at AuthorAnchor: https://authoranchor.comSubscribe, leave a comment with your own experience using free or paid ISBNs, and share this episode with another writer who may be spending money they don’t need to spend. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.