KDP categories · Top KDP authors
Gruenholtz: Amazon KDP author data
As of Nov 6, 2026, Gruenholtz has 15 books on Amazon, 4 of them on a best-seller list in the last 30 days (best rank #1), mostly in Nude Photography, Lifestyle & Events, Lifestyle.
| Median price | $50.93 |
|---|---|
| Price range (middle 50%) | $37.08 – $56.63 |
| Median reviews | 36 |
| Total reviews | 816 |
| New listings (30 days, incl. new editions) | 2 |
| Breakout books (30 days) | 2 |
What stands out
- Median price $50.93, 89% above the median of their main category, Nude Photography.
Gruenholtz's best-ranked books
-
The Fine Art of Erections 2027 (Calendars 2027)
by Gruenholtz
- Price$25.15
- Rating4.5
- Reviews15
- Published2026-09
-
The Fine Art of Erections
by Gruenholtz
- Price$52.40
- Rating4.5
- Reviews279
-
Men 2027 (Calendars 2027)
by Gruenholtz
- Price$25.15
- Rating5.0
- Reviews5
- Published2026-09
-
Uncensored: My Year Behind the Scenes with Michael Lucas and His Models
by Gruenholtz
- Price$56.63
- Rating4.8
- Reviews7
-
Uncensored: My Year Behind the Scenes with Michael Lucas and His Models
by Gruenholtz
- Price$91.93
- Rating4.6
- Reviews107
-
The Fine Art of Erections 2023 (Calendars 2023)
by Gruenholtz
- Price-
- Rating4.5
- Reviews97
-
Men 2022 (Calendars 2022)
by Gruenholtz
- Price-
- Rating4.4
- Reviews57
-
Uncensored 2021 (Calendars 2021)
by Gruenholtz
- Price-
- Rating4.6
- Reviews56
-
The Fine Art of Erections 2026 (Calendars 2026)
by Gruenholtz
- Price-
- Rating4.5
- Reviews44
-
Men 2024 (Calendars 2024)
by Gruenholtz
- Price$37.08
- Rating4.4
- Reviews43
Main categories
FAQ
How many books does Gruenholtz have on Amazon?
KDPTop tracks 15 of their books; 4 made an Amazon list in the last 30 days.
Which categories does Gruenholtz publish in?
Their books chart most often in Nude Photography, Lifestyle & Events, Lifestyle.
How does Gruenholtz price their books?
The median price is $50.93; half of the books cost $37.08–$56.63.
Has Gruenholtz 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.