KDP categories · Top KDP authors
JF Brink: Amazon KDP author data
As of Nov 6, 2026, JF Brink has 4 books on Amazon, 3 of them on a best-seller list in the last 30 days (best rank #7), mostly in Alien Invasion, Cyberpunk, First Contact.
| Median price | $7.99 |
|---|---|
| Price range (middle 50%) | $7.99 – $7.99 |
| Median reviews | 1,340 |
| Total reviews | 5,673 |
| New listings (30 days, incl. new editions) | 3 |
| Breakout books (30 days) | 2 |
What stands out
- Amazon lists 2 author pages (separate Author IDs) under this name; this page combines them.
- Median price $7.99, 49% below the median of their main category, Alien Invasion.
- 3 new listings in the last 30 days (new editions included), 2 of them broke into a Best Sellers list.
JF Brink's best-ranked books
-
Defiance of the Fall 17: A LitRPG Adventure
by JF Brink
- Price$7.99
- Rating4.6
- Reviews1,340
- Published2026-09
-
Defiance of the Fall 17: A LitRPG Adventure
by JF Brink
- Price$23.29
- Rating4.6
- Reviews1,350
- Published2026-09
-
Defiance of the Fall 16: A LitRPG Adventure
by JF Brink
- Price$0.99
- Rating4.6
- Reviews2,993
- Published2025-12
-
Defiance of the Fall 18: A LitRPG Adventure
by JF Brink
- Price$7.99
- Reviews-
- Published2027-09
Main categories
FAQ
How many books does JF Brink have on Amazon?
KDPTop tracks 4 of their books; 3 made an Amazon list in the last 30 days.
Which categories does JF Brink publish in?
Their books chart most often in Alien Invasion, Cyberpunk, First Contact.
How does JF Brink price their books?
The median price is $7.99; half of the books cost $7.99–$7.99.
Has JF Brink 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.