Method before headline
Every model identifies its assumptions. Every maintained reference identifies the primary specifications checked. We do not turn an estimate into a “study” after the fact.
Cambric Book Production Lab Useful enough to cite.
Useful enough to cite.
Honest enough to trust.
Open production models, maintained preflight matrices, and first-party product evidence for authors turning manuscripts into print books and ebooks. Every asset publishes its method, version, and limitations.
Limitations in public
A screenshot proves an interface, not universal output conformance. A valid EPUB is not automatically a good ebook. The claim boundary ships with the asset.
Cambric owns the next action
The research helps an author decide; Cambric is the production source that applies the decision to a real manuscript and regenerates the release files.
Open resources
Production answers with inspectable data.
These are linkable assets, not filler articles. Use the web version, inspect the table, or download the versioned JSON.
01planning model
Book Page Count Model by Word Count & Trim Size
A transparent book page-count planning model for fiction and narrative nonfiction across 5 × 8, 5.25 × 8, 5.5 × 8.5, and 6 × 9 trim sizes.
02maintained reference
Print Book Interior Preflight Checklist & Matrix
A stage-by-stage print book interior preflight matrix for trim, margins, bleed, fonts, images, pagination, preview, and physical proof.
03maintained reference
EPUB 3 Preflight Checklist for Valid, Usable Ebooks
A maintained EPUB 3 preflight matrix covering package validity, navigation, semantics, reflow, accessibility, metadata, and retailer QA.
04maintained reference
KDP Print Rejection Reasons: A Repair Taxonomy
A practical taxonomy of preventable KDP print-file failures, their likely root causes, prevention steps, and the production stage that should own the repair.
05planning model
Book Format Decision Matrix: Trim, Type & Workflow
A practical decision matrix for selecting starting trim, typography direction, body-size range, production risk, and workflow by book type.
06product evidence
Cambric Product Workflow: Evidence & Claim Register
A public register separating the current Cambric product model and documentation from claims that still require reproducible import fixtures, export specimens, or independent validation.
Research becomes useful when the manuscript changes
Keep the book’s production source in Cambric.
Retain the original DOCX, confirm semantic book structure, resolve design and edition rules, inspect the composed pages, and preflight before generating PDF, EPUB, or an editable DOCX handoff.
Review Cambric for my manuscript → Windows + Mac · local-first project · unlimited books · 30-day guaranteeCambricRelease preflight LOCAL
✓
Manuscript structure24 exportable chapters
PASS✓
Print geometryTrim and binding margins resolved
PASS✓
TypographyFont package available
PASS!
Short final pageChapter 19 · inspect two lines
REVIEW