Publishing a novel yourself is a sequence of small decisions that feel enormous the first time you make them. Much of the advice online assumes a US publisher, a dollar price and a copyright system that does not quite match ours. The UK has its own quirks in three places: where ISBNs come from, which libraries are entitled to a copy of your book, and what printing actually costs at a sensible scale. Sort those out early and the rest of the process gets easier.
Do you actually need an ISBN?
If you are printing twenty copies for friends and a local reading, no. If you want your novel in bookshops, in library catalogues, in wholesalers' systems or on retailer websites with proper bibliographic data, yes. The ISBN is the number that lets everyone else identify your book without confusion — and the UK trade relies on it.
Two rules matter more than people expect. First, each format needs its own ISBN: paperback, hardback, ebook and audiobook are separate products, even if the words inside are identical. Second, never reuse a number from an earlier edition. If you substantially revise the text or change the publisher, you are effectively publishing a new edition.
Buying ISBNs in the UK
New ISBNs for books published in the UK and Ireland come from Nielsen, which runs the ISBN agency here. You cannot pick one up from a high street stationer, and buying from a reseller overseas will cause you problems later. Nielsen issues ISBNs in blocks rather than singly, so check the current options on their site before you assume one number is all you need.
Block-buying sounds excessive for one novel, but most writers end up using more than they planned: paperback, hardback, a large-print edition, an ebook, a revised edition two years down the line. Ten numbers are rarely wasted.
Once you have them, you register each one: title, author name, format, price, publication date and publisher. That last field is worth thinking about. You can register an imprint name — something like your own small press — rather than your own name, and many self-published novelists do, because it looks tidier on a bookshelf and makes it easier to publish a second book under the same banner. Registration feeds the trade databases that shops and libraries search. Get the metadata wrong and your book becomes difficult to order, however good it is.
Some print-on-demand platforms offer a free ISBN. The trade-off is that the platform is recorded as the publisher of record, and the number generally cannot be used elsewhere. That is fine if you plan to stay put. It is limiting if you later want to move printers or sell directly to shops.
Where the number goes
- On the copyright page, usually the verso of the title page, alongside your imprint name.
- On the back cover, encoded as an EAN-13 barcode. Most printers generate this for you from the ISBN, but ask.
- In your ebook's front matter, though retailers care more about the metadata you submit than the page itself.
Legal deposit: the six libraries
If your book is published in the UK, print copies are subject to legal deposit. Self-published authors are treated as publishers here, so the obligation sits with you. The rules come from the Legal Deposit Libraries Act 2003, with later regulations covering non-print works.
The British Library is entitled to one copy of every UK publication, and it is your job to send it — the library will not chase you for it. The other five libraries normally make their requests through the Agency for the Legal Deposit Libraries. You may hear nothing for months, then receive a request for a copy. Send it when it arrives.
- The British Library
- The Bodleian Libraries, University of Oxford
- Cambridge University Library
- The National Library of Scotland
- The National Library of Wales
- Trinity College Dublin
Practically, this means budgeting for up to six copies that you will not be paid for, and factoring that into your print run. A short run of 100 suddenly looks like 94. The copies should be the finished published edition, not a proof or a marked-up draft.
Ebooks and other digital publications can also fall within legal deposit, and deposit generally happens through the Agency's scheme rather than by sending files unprompted. Check the Agency's current guidance rather than relying on a forum post. If your situation is unusual — a co-authored work, a book first published abroad — it is worth taking proper advice before deciding you are exempt.
Choosing how to print
There are three realistic routes. Offset printing uses plates and pays off on longer runs, but the set-up costs mean it rarely makes sense below a few hundred copies. Short-run digital printing sits in the middle: sensible quality, quantities from around fifty to a few hundred, and unit costs that fall as you order more. Print-on-demand produces one copy at a time, usually at the highest unit cost but with no stock, no storage and no risk of a spare room full of unsold novels.
For a debut novel, most writers do one of two things: a short digital run to sell at events and send to reviewers, plus print-on-demand for online orders — or print-on-demand alone until demand is proven. Ordering two thousand copies before you know how you will shift them is the classic expensive mistake.
Trim size, paper and spine width
Decide your trim size before anyone designs a cover. The classic UK paperback format is around 198 × 129mm, though many print-on-demand suppliers default to 203 × 127mm, which is a US trade size. Both look fine on a shelf; the important thing is that your cover, your interior file and your printer all agree.
Spine width is calculated from page count and the thickness, or bulk, of the paper you choose. Cream paper is bulkier than white and suits fiction better, but it will push your page count and spine up. Ask your printer for their spine calculator and use their figure, not an estimate from a blog. A spine that is two millimetres out means the title will not sit centred, and you will be reprinting the cover.
Other choices worth deciding early: font size and leading, which change your page count; margins wide enough that the text does not disappear into the gutter; matte or gloss finish on the cover; and whether you want a hardback at all.
Selling to shops, if that is the plan
Bookshops generally expect a trade discount of roughly half the retail price, and sometimes the option to return unsold copies. That changes your maths. Work backwards from a realistic retail price and check that after discount, printing and postage you are not losing money on every sale. Getting listed with a wholesaler — Gardners is the main one in the UK — makes it far easier for a shop to order one or two copies, which is how most indies will test you.
A practical order of play
- Choose your formats and trim size, and settle on your imprint name.
- Buy a block of ISBNs from Nielsen and register one for each format.
- Lay out the interior, generate the cover with the correct spine width, and order a proof copy.
- Set up your short run or print-on-demand listing, and order a final copy to check.
- Send a copy to the British Library, then respond to any request from the Agency for the Legal Deposit Libraries.
- Keep a simple spreadsheet: ISBNs, formats, dates, and which libraries have received copies.
None of this is difficult, but it is easy to do out of order and then pay to fix. Do the paperwork first, get a proof in your hands before you commit to a run, and keep your records tidy. Your second novel will thank you for it.
Photo: PublicCo / Pixabay





