KDP Editorial Blog

What eleven published KDP titles actually taught us

Every article here reports something that happened to our own catalogue — a category removed, an advertising account suspended, an A+ submission rejected, a trim size change that cost more than it saved. Numbers are measured, not estimated.

Costs & royalties

Print costs, trim size, marketplace differences

Amazon decisions

Category removals, ads suspensions, A+ rejections

Measured results

What organic sales and A+ content really do

KDP’s Two-Titles-Per-Week Limit

Blocked on our third paperback. What counts, and how we replanned.

Low Content vs High Content

Amazon charges by the page. The content model is not an input to the formula.

An Ads Campaign at Zero Impressions

0 impressions across 4 days. The bid sat under the suggested floor.

210 of 350 Backend Keyword Characters

What our own audit found, and the three rules that freed the space.

How to Check if a KDP Book Sold

Four channels, four delays — and why an absent rank is not a zero.

Eleven Titles, Zero Reviews

What organic KDP sales actually look like, measured.

Amazon Ads Account Suspension

What triggers it, and the move that makes it worse.

When Amazon Removes Your Category

Why the empty low-competition category was always the trap.

Why A+ Content Gets Rejected

The real causes behind Amazon's misleading validation error.

Does A+ Content Actually Sell More Books?

Measured across 11 titles — and 16 page-one competitors, none of which had A+.

Amazon.ca vs Amazon.com for KDP

Rank is not comparable, node IDs do not transfer, French pages break parsing.

Changing Trim Size Creates a New ASIN

161 to 136 pages saved 0.28 CAD a copy. The new ASIN cost more than that.

KDP Print Costs and Royalties

Price paperback and hardcover books correctly.