Self-Publishing Glossary: 40 Terms Authors Actually Need

Updated September 2026. The words that decide what you pay, what you get and what your book can do — in plain English.

Most publishing quotes are confusing because the vocabulary is unfamiliar, not because the work is complicated. Here is what each term actually means, so you can read any quote — ours or anyone else's — and understand exactly what you are buying.

ARC (Advance Reader Copy)
A free early copy given to reviewers, bloggers or readers before launch, in exchange for an honest review. Usually a digital file; sometimes a small print run.
Back matter
Everything after the main text: acknowledgements, author bio, other books, a call to action, appendices.
Barcode
The scannable symbol on the back cover. It encodes the ISBN so bookshops and warehouses can scan the book. Generated from the ISBN.
Bleed
Extra artwork extending past the trim line — usually 3mm — so that when the page is cut, the colour runs cleanly to the edge. Without bleed you get thin white slivers.
Blurb
The short sales description on the back cover (or the book's retail page). Also used loosely for the endorsement quotes from other authors.
Case binding
Hardcover binding where the pages are sewn or glued into a rigid board case. More expensive and more durable than a paperback.
CMYK
The four-colour print model (cyan, magenta, yellow, black). Print files should be CMYK. Screens use RGB, which is why colours can look different on paper.
Copyediting
The edit that fixes mechanics, consistency and accuracy — spelling, grammar, punctuation, style-sheet consistency — without rewriting the author's sentences.
Developmental editing
An edit to structure, argument, pacing and organisation. The biggest and most expensive kind of edit, and usually the most valuable on a first book.
Distribution
Getting the book into the systems retailers buy from. Separate from printing: a book can be printed and still be undiscoverable without distribution.
DPI
Dots per inch — resolution. Print images need 300dpi at their final printed size. Web images need far less. Low-resolution images print soft or pixelated.
Drop cap
A large decorative first letter at the start of a chapter. A design choice, not a rule.
DRM
Digital Rights Management — software that restricts copying of an eBook. Some retailers want it; many indie authors now skip it.
EPUB
The standard reflowable eBook format. Text adapts to the reader's screen size and font choice. What you want for Amazon, Apple Books and Kobo.
eBook conversion
Turning a print layout into a reflowable digital book. Not a file rename — a print layout does not work as an eBook, and it has to be rebuilt.
Front matter
Everything before the main text: title page, copyright page, dedication, table of contents, foreword or preface.
Ghostwriting
Writing the book on the author's behalf, in their voice, usually credited to the author. Usually the most expensive service in publishing.
Gloss / matte laminate
The protective finish on a cover. Gloss is shinier and more striking; matte looks more premium but shows fingerprints.
Gutter / inner margin
The margin at the spine side of the page. It must be wider than the outer margin or the text disappears into the binding.
Hardcover
Rigid-board binding. Priced as the premium format — costlier per copy than paperback.
Imprint
A publisher's brand name. A self-publishing author can register their own imprint, which is simply a name they publish under.
IngramSpark
A print-on-demand and distribution service used widely by indie publishers to reach bookshops and libraries.
ISBN
The International Standard Book Number — the unique identifier for one edition of one book. Every format (paperback, hardcover, eBook) needs its own.
KDP (Kindle Direct Publishing)
Amazon's self-publishing platform. Free to use; Amazon takes a share of each sale. Also prints paperbacks through KDP Print.
KDP Select
An optional programme that makes an eBook exclusive to Amazon for 90 days in exchange for marketing benefits. A trade-off, not a default.
Leading
The vertical space between lines of text. Too tight and the page feels dense; too loose and it looks thin.
List price
The cover price the author sets. Royalties are calculated from it, and it must be high enough to cover printing and leave a margin.
Offset printing
Traditional printing using metal plates. Cheaper per copy at high volumes (generally 500+), expensive at low volumes.
Orphan / widow
A single line left alone at the bottom (orphan) or top (widow) of a page. Print layouts are adjusted to avoid them.
Paperback
Softcover binding. The standard format for most first print runs.
Perfect binding
The standard paperback binding: pages glued into a square spine. Cheap and fine for most books, but thick books resist staying open.
Podcast / print-on-demand (POD)
Printing copies one at a time as orders arrive. No upfront stock, higher cost per copy. The opposite of a print run.
Proofreading
The final pass for typos and small errors, after editing and layout. Not a substitute for copyediting.
Royalty
The author's share of each sale. In self-publishing the author keeps the large majority — sometimes 100% of the publisher's share — unlike traditional publishing.
Running head
The text at the top of each page, usually the book title or chapter name.
Smyth sewn / thread sewn
Binding where sections are sewn together with thread before being cased. The book lies flat and lasts. A premium option, and not available from most short-run printers.
Style sheet
The document recording an author's decisions — spelling conventions, punctuation preferences, capitalisation — so the edit stays consistent across the whole book.
Trim size
The finished page dimensions of the book (e.g. 6 × 9 inches). Chosen before layout; changing it later means redoing the layout.
Typesetting / interior layout
Arranging the text and images on the page: fonts, margins, spacing, chapter openings. Makes a manuscript look like a book.
Vanity press
A publisher that charges authors to publish, without the selectivity or services of a traditional house. Distinct from self-publishing, where the author keeps control and royalties.

What this means in practice

Four of these terms decide most of what you will spend: trim size (fixed before layout), page count (priced to a page basis), colour interior (the single biggest print jump) and print run (offset is cheaper per copy at volume, digital is cheap at low volume).

And two decide what your book can do once printed: distribution and ISBN — one per format. Printing without those produces a box of books nobody can order.

Get an exact price for your manuscript

Tell us the page count, whether you need colour inside, and how many copies you want — and we will come back with one figure, not a range.

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Related cost guides
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