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Katrina van Grouw: Amazon KDP author data
As of Nov 6, 2026, Katrina van Grouw has 4 books on Amazon, 4 of them on a best-seller list in the last 30 days (best rank #22), mostly in Taxonomic Classification, Art, Evolution.
| Median price | $58.50 |
|---|---|
| Price range (middle 50%) | $49.08 – $61.49 |
| Median reviews | 90 |
| Total reviews | 179 |
| New listings (30 days, incl. new editions) | 2 |
| Breakout books (30 days) | 2 |
What stands out
- Median price $58.50, 94% above the median of their main category, Taxonomic Classification.
Katrina van Grouw's best-ranked books
-
Unnatural Selection
by Katrina van Grouw
- Price$25.33
- Rating4.8
- Reviews90
-
-
A New Unfeathered Bird
by Katrina van Grouw
- Price$60
- Reviews-
- Published2027-01
-
Unnatural Selection
by Katrina van Grouw
- Price$65.97
- Rating4.8
- Reviews89
Main categories
FAQ
How many books does Katrina van Grouw have on Amazon?
KDPTop tracks 4 of their books; 4 made an Amazon list in the last 30 days.
Which categories does Katrina van Grouw publish in?
Their books chart most often in Taxonomic Classification, Art, Evolution.
How does Katrina van Grouw price their books?
The median price is $58.50; half of the books cost $49.08–$61.49.
Has Katrina van Grouw 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.