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Ken Polk: Amazon KDP author data
As of Nov 6, 2026, Ken Polk has 4 books on Amazon, 4 of them on a best-seller list in the last 30 days (best rank #2), mostly in Systems & Planning, Sustainable Development, Strategic Planning.
| Median price | $18.10 |
|---|---|
| Price range (middle 50%) | $13.57 – $23.58 |
| Median reviews | 40 |
| Total reviews | 40 |
| New listings (30 days, incl. new editions) | 3 |
| Breakout books (30 days) | 2 |
What stands out
- 3 new listings in the last 30 days (new editions included), 2 of them broke into a Best Sellers list.
Ken Polk's best-ranked books
-
Built on Purpose: Applying the 3 Laws of Purpose to Business, Living, and Giving
by Ken Polk
- Price$9.99
- Reviews-
- Published2026-10
-
Built on Purpose: Applying the 3 Laws of Purpose to Business, Living, and Giving
by Ken Polk
- Price$29.99
- Reviews-
-
The Spirit of Wealth Preservation: Leverage Your Finite Life for the Infinite Good
by Ken Polk
- Price$21.44
- Rating4.6
- Reviews40
-
Built on Purpose: Applying the 3 Laws of Purpose to Business, Living, and Giving
by Ken Polk
- Price$14.76
- Reviews-
- Published2026-09
Main categories
FAQ
How many books does Ken Polk have on Amazon?
KDPTop tracks 4 of their books; 4 made an Amazon list in the last 30 days.
Which categories does Ken Polk publish in?
Their books chart most often in Systems & Planning, Sustainable Development, Strategic Planning.
How does Ken Polk price their books?
The median price is $18.10; half of the books cost $13.57–$23.58.
Has Ken Polk released new books recently?
3 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.