KDP categories · Top KDP authors
Jen Schaffer: Amazon KDP author data
As of Nov 6, 2026, Jen Schaffer has 3 books on Amazon, 1 of them on a best-seller list in the last 30 days (best rank #13), mostly in Serial Killers, Biographies & Memoirs, Crime & Criminal Biographies.
| Median price | $16.61 |
|---|---|
| Price range (middle 50%) | $10.30 – $20.80 |
| Median reviews | 9 |
| Total reviews | 29 |
| New books (30 days) | 1 |
| Breakout books (30 days) | 1 |
What stands out
- Median price $16.61, 28% above the median of their main category, Serial Killers.
Jen Schaffer's best-ranked books
-
The "Candy Man" Murders: Three Years of Terror in Houston
by Jen Schaffer
- Price$3.99
- Rating4.7
- Reviews11
- Published2026-10
-
The "Candy Man" Murders: Three Years of Terror in Houston
by Jen Schaffer
- Price$16.61
- Rating4.6
- Reviews9
- Published2026-10
-
The "Candy Man" Murders: Three Years of Terror in Houston
by Jen Schaffer
- Price$24.99
- Rating4.6
- Reviews9
- Published2026-10
Main categories
FAQ
How many books does Jen Schaffer have on Amazon?
KDPTop tracks 3 of their books; 1 made an Amazon list in the last 30 days.
Which categories does Jen Schaffer publish in?
Their books chart most often in Serial Killers, Biographies & Memoirs, Crime & Criminal Biographies.
How does Jen Schaffer price their books?
The median price is $16.61; half of the books cost $10.30–$20.80.
Has Jen Schaffer released new books recently?
1 new book 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.