The Learning Zone
Practical design, formatting, and editorial guidance for authors and publishers bringing a book to print.
Why Did My Hardcover Jacket Wrap Come Back Misaligned?
Hardcover jacket wrap misaligned on IngramSpark or Lightning Source? It’s the same spine width math behind KDP spine text — here’s how to fix it.
Why Does My Book Cost More to Print Than I Expected on IngramSpark?
IngramSpark print cost comes in higher than expected for a reason: it’s a page-count-and-trim-size formula, not a flat rate. Here’s how to calculate the real number first.
Why Is There Text Loss Near the Gutter Margin in My Paperback?
Text disappearing near the spine of your paperback? Gutter margin loss is almost always a margin math problem tied to page count, not a printing defect.
Why Do My Images Look Blurry in My Printed Proof?
Blurry images in your KDP or IngramSpark proof? It’s almost always a resolution problem, not a printing error. Here’s how to catch it first.
Why Won’t My Table of Contents Links Work in My KDP Ebook?
KDP table of contents links not working? It’s usually one of two separate navigation systems failing — here’s how to tell which, and fix it.
Why Is My Spine Text Off-Center or Missing on KDP?
KDP spine text off-center or missing? It’s almost always page count and timing, not your design file. Here’s the real fix.
Why Does My KDP Print Proof Look Different From the Digital Preview?
Your KDP print proof and digital preview will never match exactly. Here's why, what's normal, and how to catch real problems before you reorder.
Why Did IngramSpark Reject My File?
IngramSpark and Lightning Source rejections almost always trace back to one of five issues: file size, embedded fonts, PDF/X compliance, image resolution, or a cover-to-interior mismatch. Here’s how to diagnose which one, fast.