KDP categories · Top KDP authors
J.D. Barker: Amazon KDP author data
As of Nov 6, 2026, J.D. Barker has 42 books on Amazon, 13 of them on a best-seller list in the last 30 days (best rank #7), mostly in Misterio y Thriller, Horror, Ghosts.
| Median price | $9.99 |
|---|---|
| Price range (middle 50%) | $8.99 – $14.99 |
| Median reviews | 1,956 |
| Total reviews | 165,941 |
| New books (30 days) | 4 |
| Breakout books (30 days) | 1 |
What stands out
- Median price $9.99, 25% above the median of their main category, Misterio y Thriller.
- 4 new books in the last 30 days, 1 of them broke into a Best Sellers list.
J.D. Barker's best-ranked books
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The Fourth Monkey: A Dark and Twisty Police Procedural about the Search for a Serial Killer (A 4MK Thriller Book 1)
by J.D. Barker
- Price$14.99
- Rating4.5
- Reviews19,390
-
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La sexta trampa (El Cuarto Mono nº 3) (Spanish Edition)
by J.D. Barker
- Price$9.99
- Rating4.6
- Reviews3,385
-
La quinta víctima (El Cuarto Mono nº 2) (Spanish Edition)
by J.D. Barker
- Price$9.99
- Rating4.5
- Reviews3,060
-
El Cuarto Mono (Spanish Edition)
by J.D. Barker
- Price$8.99
- Rating4.5
- Reviews6,326
- Published2018-06
-
-
The Sixth Wicked Child (A 4MK Thriller Book 3)
by J.D. Barker
- Price$8.97
- Rating4.7
- Reviews10,391
-
La escritora: El thriller donde la reina del crimen podría ser la protagonista de su caso más oscuro. (Spanish Edition)
by J.D. Barker
- Price$9.99
- Rating4.2
- Reviews1,097
-
The Fifth to Die: A Gripping Serial Killer Thriller and Detective Mystery in The Fourth Monkey Series (A 4MK Thriller Book 2)
by J.D. Barker
- Price$14.99
- Rating4.5
- Reviews8,545
-
The Fourth Monkey - Geboren, um zu töten: Thriller (Sam Porter 1) (German Edition)
by J.D. Barker
- Price$9.99
- Rating4.4
- Reviews1,424
Main categories
FAQ
How many books does J.D. Barker have on Amazon?
KDPTop tracks 42 of their books; 13 made an Amazon list in the last 30 days.
Which categories does J.D. Barker publish in?
Their books chart most often in Misterio y Thriller, Horror, Ghosts.
How does J.D. Barker price their books?
The median price is $9.99; half of the books cost $8.99–$14.99.
Has J.D. Barker 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.