KDP categories · Top KDP authors
J.J. Frank: Amazon KDP author data
As of Nov 6, 2026, J.J. Frank has 4 books on Amazon, 4 of them on a best-seller list in the last 30 days (best rank #1), mostly in Aliens, Dark Fantasy, Action & Adventure.
| Median price | $5.99 |
|---|---|
| Price range (middle 50%) | $5.49 – $7.99 |
| Median reviews | 5 |
| Total reviews | 11 |
| New books (30 days) | 4 |
| Breakout books (30 days) | 1 |
What stands out
- Median price $5.99, 45% below the median of their main category, Aliens.
- 4 new books in the last 30 days, 1 of them broke into a Best Sellers list.
J.J. Frank's best-ranked books
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Gray Hollow: The Betrayal
by J.J. Frank
- Price$5.99
- Rating5.0
- Reviews1
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Main categories
FAQ
How many books does J.J. Frank have on Amazon?
KDPTop tracks 4 of their books; 4 made an Amazon list in the last 30 days.
Which categories does J.J. Frank publish in?
Their books chart most often in Aliens, Dark Fantasy, Action & Adventure.
How does J.J. Frank price their books?
The median price is $5.99; half of the books cost $5.49–$7.99.
Has J.J. Frank released new books recently?
4 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.