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Robert E. Kowalski: Amazon KDP author data
As of Nov 6, 2026, Robert E. Kowalski has 5 books on Amazon, 5 of them on a best-seller list in the last 30 days (best rank #6), mostly in Low Cholesterol, Food Counters, Heart Healthy.
| Median price | $8.99 |
|---|---|
| Price range (middle 50%) | $8.38 – $11.16 |
| Median reviews | 353 |
| Total reviews | 1,159 |
| New books (30 days) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- 100% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $8.99, 41% below the median of their main category, Low Cholesterol.
Robert E. Kowalski's best-ranked books
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The New 8-Week Cholesterol Cure: The Ultimate Program for Preventing Heart Disease
by Robert E. Kowalski
- Price$3.99
- Rating4.3
- Reviews353
- Published2009-10
-
The New 8-Week Cholesterol Cure: The Ultimate Program for Preventing Heart Disease – Lower Your Cholesterol and Fight Heart Disease with This Proven Natural Program
by Robert E. Kowalski
- Price$8.38
- Rating4.3
- Reviews353
-
The New 8-Week Cholesterol Cure: How to Lower Your Cholesterol by up to 40 Percent Without Drugs or ―Lower Your Cholesterol and Fight Heart Disease with This Proven Natural Program
by Robert E. Kowalski
- Price$8.99
- Rating4.3
- Reviews353
-
The 8-Week Cholesterol Cure: How to Lower Your Blood Cholesterol by Up to 40 Percent Without Drugs or Deprivation
by Robert E. Kowalski
- Price$11.16
- Rating4.3
- Reviews50
-
The 8-Week Cholesterol Cure: How to Lower Your Blood Cholesterol by Up to 40 Percent Without Drugs or Deprivation
by Robert E. Kowalski
- Price$11.25
- Rating4.3
- Reviews50
Main categories
FAQ
How many books does Robert E. Kowalski have on Amazon?
KDPTop tracks 5 of their books; 5 made an Amazon list in the last 30 days.
Which categories does Robert E. Kowalski publish in?
Their books chart most often in Low Cholesterol, Food Counters, Heart Healthy.
How does Robert E. Kowalski price their books?
The median price is $8.99; half of the books cost $8.38–$11.16.
Has Robert E. Kowalski released new books recently?
0 new books in the last 30 days.
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.