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Zack Kleyn: Amazon KDP author data
As of Nov 6, 2026, Zack Kleyn has 2 books on Amazon, 2 of them on a best-seller list in the last 30 days (best rank #13), mostly in Administration & Medicine Economics, Health Policy, Health Care Delivery.
| Median price | $19.99 |
|---|---|
| Price range (middle 50%) | $14.99 – $24.99 |
| Median reviews | - |
| Total reviews | 0 |
| New listings (30 days, incl. new editions) | 2 |
| Breakout books (30 days) | 2 |
What stands out
- Median price $19.99, 17% above the median of their main category, Administration & Medicine Economics.
Zack Kleyn's best-ranked books
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Anatomy of a PBM: Contracts, Claims, Incentives and the Real Economics of Pharmacy Benefits
by Zack Kleyn
- Price$29.99
- Reviews-
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Anatomy of a PBM: Contracts, Claims, Incentives and the Real Economics of Pharmacy Benefits
by Zack Kleyn
- Price$9.99
- Reviews-
- Published2026-10
Main categories
FAQ
How many books does Zack Kleyn have on Amazon?
KDPTop tracks 2 of their books; 2 made an Amazon list in the last 30 days.
Which categories does Zack Kleyn publish in?
Their books chart most often in Administration & Medicine Economics, Health Policy, Health Care Delivery.
How does Zack Kleyn price their books?
The median price is $19.99; half of the books cost $14.99–$24.99.
Has Zack Kleyn released new books recently?
2 new books in the last 30 days, 2 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.