Ask a question about a market, an idea, or one of your books.
KDP Refinery turns the data into a clear answer and a next action.
Answer first. Evidence when you want it.
No need to be a statistician to understand the decision.
Example verdict
Worth testing
There appears to be real reader demand, but the market is not low-competition.
Recent entrants can still gain traction when the packaging matches reader expectations.
Best next action
Validate the cover, trope promise and closest comparable books before commissioning the manuscript.
Evidence strength
Moderate
Enough signal to test the idea, not enough to call it a low-risk opportunity.
Successful packaging consistently signals romance/protector first and suspense second.
The niche is competitive enough that a generic listing should not be treated as a safe entry.
What could change the verdict: weak recent-entry survival, falling demand, or evidence that performance is concentrated in a small number of established authors.
Complex analysis. Simple output.
The machinery stays in the background.
Ask normally
No need to know which research tool, metric or Amazon report to use.
Understand immediately
Get a verdict, the few reasons that matter, and the next action.
Verify the evidence
Open the underlying data and assumptions whenever you want more detail.