KDP categories · Top KDP authors
Robert Caldwell: Amazon KDP author data
As of Nov 6, 2026, Robert Caldwell has 3 books on Amazon, 3 of them on a best-seller list in the last 30 days (best rank #16), mostly in Diabetes, Diabetic & Sugar-Free, Diets & Weight Loss.
| Median price | $19.97 |
|---|---|
| Price range (middle 50%) | $19.97 – $19.97 |
| Median reviews | 13 |
| Total reviews | 39 |
| New listings (30 days, incl. new editions) | 2 |
| Breakout books (30 days) | 1 |
What stands out
- Median price $19.97, 37% above the median of their main category, Diabetes.
Robert Caldwell's best-ranked books
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35-Day Diabetic Meal Plan Cookbook for Seniors: Easy Recipes for Better Blood Sugar, Beginner-Friendly Meal Planning, Full Color Edition
by Robert Caldwell
- Price$0
- Rating4.3
- Reviews13
-
35-Day Diabetic Meal Plan Cookbook for Seniors: Easy Recipes for Better Blood Sugar, Beginner-Friendly Meal Planning, Full Color Edition
by Robert Caldwell
- Price$19.97
- Rating4.3
- Reviews13
- Published2026-09
-
35-Day Diabetic Meal Plan Cookbook for Seniors Over 60: Easy Recipes for Better Blood Sugar • Beginner-Friendly Meal Planning • Full Color Edition
by Robert Caldwell
- Price$19.97
- Rating4.3
- Reviews13
Main categories
FAQ
How many books does Robert Caldwell have on Amazon?
KDPTop tracks 3 of their books; 3 made an Amazon list in the last 30 days.
Which categories does Robert Caldwell publish in?
Their books chart most often in Diabetes, Diabetic & Sugar-Free, Diets & Weight Loss.
How does Robert Caldwell price their books?
The median price is $19.97; half of the books cost $19.97–$19.97.
Has Robert Caldwell released new books recently?
2 new books in the last 30 days, 1 of which reached a Best Sellers list.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.