Bleed is required when images or color extend to the page edge. Text-heavy books with white margins often print without bleed. Choose correctly in intake so the print editor and cover calculator match.
KDP glossary
Amazon KDP terms explained
30 publishing terms every KDP operator should know — from trim and bleed to BISAC, KENP, and print-on-demand — with links to related BookWizard guides.
- Trim size
- Final width and height of a paperback after printing and cutting (for example 6×9 inches). Learn more →
- Bleed
- Extra image area that extends beyond the trim edge so artwork is not left with white slivers after cutting. Learn more →
- Spine width
- Thickness of the paperback spine; derived from page count and paper type — critical for wrap covers. Learn more →
- Wrap cover
- Single cover PDF including back, spine, and front for KDP paperback upload. Learn more →
- Gutter
- Inner margin near the binding; too tight and text disappears into the spine. Learn more →
- Interior PDF
- Fixed-layout paperback manuscript file matching trim and margins for KDP print. Learn more →
- EPUB
- Common ebook package format used for Kindle uploads alongside KDP’s conversion flow. Learn more →
- KDP
- Kindle Direct Publishing — Amazon’s self-publishing platform for ebooks and paperbacks. Learn more →
- Print-on-demand
- Books printed when ordered rather than offset-printed in large inventory batches.
- ISBN
- Identifier for editions; KDP can provide free ISBNs for paperbacks with Amazon as imprint.
- ASIN
- Amazon’s internal identifier for products, including Kindle editions.
- BISAC
- Industry subject codes publishers use; related to but not identical to Amazon browse categories. Learn more →
- Backend keywords
- Up to seven KDP keyword fields that influence discoverability; not customer-visible like the title. Learn more →
- Browse category
- Amazon category placement that shapes where a title appears in the store taxonomy. Learn more →
- KENP
- Kindle Edition Normalized Pages — used in Kindle Unlimited pages-read royalty calculations. Learn more →
- KDP Select
- Optional exclusivity enrollment for Kindle ebooks that enables KU and certain promos. Learn more →
- Expanded distribution
- Options to distribute print beyond Amazon storefronts; availability depends on KDP settings. Learn more →
- Proof copy
- Author copy used to check print quality before wide release. Learn more →
- Live previewer
- Amazon’s on-site preview of interior/cover; catch margin and spine issues before approval. Learn more →
- AI disclosure
- KDP requirement to accurately declare AI-generated text, images, or translations. Learn more →
- Metadata
- Title, subtitle, description, contributors, keywords, categories, and related listing fields. Learn more →
- Imprint
- Publishing name associated with an ISBN / publisher record on a title.
- Series
- Linked set of volumes sharing branding and reading order on Amazon. Learn more →
- Low-content book
- Journals, planners, and similar titles with sparse narrative text and template interiors. Learn more →
- Trim-aware editor
- Editor that paginates and margins for a chosen KDP trim rather than generic letter pages. Learn more →
- Manifest.json
- BookWizard export inventory describing deliverables in a project pack. Learn more →
- Checklist.md
- Auto-generated KDP upload checklist included with Export Studio packs. Learn more →
- Fix manifest
- Structured QA findings (FM-*) that can be batch-addressed in Improve Lab. Learn more →
- Publish Studio
- BookWizard module for Amazon listing fields, keywords, and listing pack export. Learn more →
- ACX
- Amazon’s audiobook marketplace/production ecosystem; BookWizard can bridge toward audio workflows. Learn more →
Why vocabulary matters on KDP
KDP is a manufacturing marketplace wearing a bookstore costume. When Amazon says “trim,” it means physical paper dimensions. When it says “bleed,” it means artwork that must extend past the cut line. Confusing those words with ebook language is how interiors get rejected and covers crop wrong. This glossary is the shared language between BookWizard’s intake wizard and Amazon’s upload screens.
We keep definitions practical. You will not get academic publishing theory — you will get the meaning that changes which PDF you export, which cover template you pick, and which metadata fields you fill. Use the definition list on this page as a quick lookup; use related links when you need a full guide such as /amazon-kdp-trim-sizes or /ebook-vs-paperback-kdp.
If a term appears in checklist.md from Export Studio, it is intentional. We generate operational language, not marketing fluff, so your upload pack and Amazon’s forms stay aligned.
How to use this glossary with BookWizard
During project intake, BookWizard asks for trim, format (ebook vs paperback), approximate page count, and genre signals that later become categories and keywords. If any of those prompts feel opaque, jump here, read the term, then return to the wizard with a concrete decision.
Cover Studio uses spine width derived from page count and paper type — another place glossary terms become math. Publish Studio’s seventeen-plus listing fields (title, subtitle, description, seven keywords, categories) map to Amazon’s catalog language. Knowing BISAC versus Amazon browse categories prevents the classic “wrong shelf” mistake.
Bookmark /glossary alongside /resources. When you onboard a VA or agency teammate, send them this page before giving them KDP login access — shared vocabulary reduces expensive rework.
Keep learning after the definitions
Definitions alone do not publish books. After you skim the list below, open /kdp-checklist for a phased upload plan, /kdp-keywords-generator for backend keyword strategy, and /kdp-cover-generator for wrap cover practice. Fiction series operators should also read /use-cases/series-publishing for volume numbering and continuity.
Still stuck on a policy question (AI disclosure, public domain, adult content)? Amazon’s help center wins. BookWizard helps you produce truthful, upload-ready packages; you remain the publisher of record.
Questions about how a term maps to a studio screen? Email support@bookwizardai.com or browse /faq.
FAQ