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J. Carl Gregg: Amazon KDP author data
As of Nov 6, 2026, J. Carl Gregg has 2 books on Amazon, 2 of them on a best-seller list in the last 30 days (best rank #3), mostly in Ecology, Science & Religion, Unitarian Universalism.
| Median price | $11.99 |
|---|---|
| Price range (middle 50%) | $9.99 – $13.99 |
| Median reviews | 10 |
| Total reviews | 20 |
| New books (30 days) | 2 |
| Breakout books (30 days) | 2 |
What stands out
- Median price $11.99, 18% below the median of their main category, Ecology.
J. Carl Gregg's best-ranked books
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Liberal Religion for Earthlings: How to Belong to a Living World
by J. Carl Gregg
- Price$15.99
- Rating4.7
- Reviews10
-
Liberal Religion for Earthlings: How to Belong to a Living World
by J. Carl Gregg
- Price$7.99
- Rating4.7
- Reviews10
- Published2026-09
Main categories
FAQ
How many books does J. Carl Gregg have on Amazon?
KDPTop tracks 2 of their books; 2 made an Amazon list in the last 30 days.
Which categories does J. Carl Gregg publish in?
Their books chart most often in Ecology, Science & Religion, Unitarian Universalism.
How does J. Carl Gregg price their books?
The median price is $11.99; half of the books cost $9.99–$13.99.
Has J. Carl Gregg 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.