Short Run Book Printing: Spine, Paper and Colour

Your Book Is Finished. Now It Has to Become an Object.

You've spent a year on it. Maybe five. The edits are done and the cover looks brilliant on screen. Then the printer asks how wide the spine is, which paper you'd like, and whether your images are CMYK.

Suddenly you feel like a beginner again.

That's completely normal. Writing a book and making a book are different skills. Whether you're an independent author printing your first 100 copies or a small publisher testing a new title, this guide walks through the decisions that turn a file into a book you're proud to hand over.

Short Run, Print on Demand or a Big Litho Run?

First, let's untangle the options, because the terms get used loosely.

Print on demand usually means an online platform prints one copy each time someone orders. Short run digital printing means you order a batch, perhaps 25, perhaps 500, and they're printed together. A litho run is the traditional route for large quantities, usually in the thousands.

For most independent authors and small presses, short run is the sweet spot. You get a genuine choice of paper and finish, and you don't end up with 2,000 books stacked in the spare room.

First Colour has no minimum order quantity, so you can print a small batch for a launch, see how it sells, and reorder when you need more.

Getting the Spine Right

The spine is where most first-time book files go wrong. The good news? It's easy to fix before you send anything.

How Spine Width Is Worked Out

Look, nobody gets this right by instinct. Spine width depends on two things: how many pages the book has, and how thick each sheet of paper is.

Remember that one sheet makes two pages. So a 240-page book has 120 sheets. If each sheet is 0.1mm thick, the page block is about 12mm wide. The printer may add a touch extra for the cover wrapping around it.

Here's the catch. Paper thickness isn't the same as paper weight. Two 90gsm papers can have different thicknesses, because some stocks are bulkier than others. So never guess. Ask your printer for the exact spine width once you've chosen your paper and confirmed your page count, and only then finish the cover.

Lock the Page Count Before the Cover

This is the golden rule. Add a dedication, an extra chapter or an index after the cover is designed, and the spine changes. Then the cover has to change as well.

Finish the inside first. Confirm the final page count. Then build the cover around the confirmed spine width.

When a Book Is Too Thin for a Spine

Very slim books don't have enough pages to form a solid perfect-bound spine, and text on a tiny spine can look wobbly. A stapled booklet is often a better fit for short poetry collections, zines and short guides.

Stapled books need a page count that divides by four. If you're a page or two short, add a notes page or an "about the author" page to round up.

Choosing Paper for the Kind of Book You've Written

Paper changes how a book feels, reads and even smells. It also changes the price and the spine width.

For covers, heavier board with lamination protects the book. Matt lamination feels modern and subtle. Gloss makes colours pop. Spot UV on the title adds a shine you can feel with your fingertips.

The range at First Colour runs from 60gsm up to 400gsm, with lamination and spot UV available. Torn between two stocks? Ask for a sample pack and hold them. A screen can't tell you how a page feels.

Colour Accuracy for Image-Heavy Books

Photography books and illustrated titles live or die by colour. And the gap between screen and paper can be a nasty shock.

Why Your Photos Look Darker in Print

Screens glow. Paper doesn't. A photo edited on a bright laptop will nearly always look darker and flatter on paper, especially in the shadows.

A few habits help enormously. Supply images at 300ppi at the size they'll be printed. Convert to CMYK, or ask your printer how they'd like files supplied. Lift very dark images slightly, because shadow detail tends to fill in on paper. And turn your screen brightness down when judging colour, since most screens are set far too bright.

Always See a Printed Proof

For a photo book, a PDF proof isn't enough. You need to see ink on the actual paper you've picked.

Ask for a printed proof of a few key spreads, especially ones with skin tones, dark scenes or strong colours. First Colour can run sheet proofs on request, and London-based authors can visit the studio on Newman Street to check proofs in person. Seeing pages under real light, in your own hands, beats any monitor.

Planning reprints over time? Our article on keeping colour consistent between print batches explains why a second batch can look different and how to prevent it.

The Small Details That Make a Book Look Professional

A handful of details separate a homemade-looking book from a professional one.

Add 3mm of bleed to any image or colour that runs off the page edge. Keep text well clear of the inner margin, because a glued spine stops pages opening completely flat and swallows a little of the gutter. Leave space on the back cover for an ISBN barcode if you plan to sell through bookshops.

And one that catches many independent authors out. If you publish a book in the UK, you're legally required to send a copy to the British Library within a month of publication, and the other legal deposit libraries can ask for copies too. Build a few extra books into your first run so you're covered.

Frequently Asked Questions

What is the smallest number of books I can print on a short run?

It depends on the printer, as some set a minimum of 50 or 100 copies. First Colour has no minimum order quantity, so you can print a handful of review copies or a small launch batch and reorder later.

How do I calculate the spine width of my book?

Divide the page count by two to get the number of sheets, then multiply by the thickness of one sheet. A 240-page book on paper 0.1mm thick has a spine of roughly 12mm. Paper thickness varies between stocks, so confirm the exact width with your printer before finishing the cover.

Which paper is best for a photography book?

A heavier silk or gloss paper usually works best, because it keeps images sharp and colours rich. Avoid thin uncoated paper for photo-heavy pages, as ink soaks in and pictures can look flat. Always check a printed proof on your chosen stock.

Is print on demand cheaper than a short run?

Per copy, print on demand is usually more expensive, but you don't pay for stock upfront. A short run costs more at the start and less per book, with far more choice of paper and finish. Many authors use short runs for launches and events, and print on demand for scattered online orders.

From Manuscript to Something You Can Hold

Printing a book doesn't have to feel like guesswork. Choose the right route for your quantity. Lock the page count before designing the cover, and get the exact spine width from your printer. Match the paper to the kind of book you've written. Judge images on a printed proof, not a glowing screen.

Get those choices right and your first short run can sit happily beside books from the big publishing houses. First Colour has been printing books, booklets and brochures in Central London since 1995, and it's just as happy printing your first 50 copies as your fiftieth reprint.