The Learning Zone
Practical design, formatting, and editorial guidance for authors and publishers bringing a book to print.
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.