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Reiner Grootenhuis: Amazon KDP author data
As of Nov 6, 2026, Reiner Grootenhuis has 14 books on Amazon, 13 of them on a best-seller list in the last 30 days (best rank #3), mostly in Pilates, Gymnastics, Backache.
| Median price | $35 |
|---|---|
| Price range (middle 50%) | $21.10 – $36.04 |
| Median reviews | 27 |
| Total reviews | 491 |
| New listings (30 days, incl. new editions) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- 93% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $35, 106% above the median of their main category, Pilates.
Reiner Grootenhuis's best-ranked books
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The Pilates Reformer: Part I - The Traditional Exercises (The Pilates Equipment Book 5)
by Reiner Grootenhuis
- Price$35
- Rating4.8
- Reviews80
-
The Pilates Cadillac - Part I: Introduction to the Cadillac, The Roll-Down-Bar and Push-Through-Bar exercises (The Pilates Equipment Book 3)
by Reiner Grootenhuis
- Price$35
- Rating4.9
- Reviews52
-
The Pilates Cadillac - Part II: The Leg Spring, Airplane Board, Arm Spring, Baby/Arm Chair Spring, Fuzzies and Cadillac Frame Exercises (The Pilates Equipment Book 4)
by Reiner Grootenhuis
- Price$35
- Rating5.0
- Reviews54
-
The Pilates Reformer: Part I - The Traditional Exercises (The Pilates Equipment)
by Reiner Grootenhuis
- Price$53.30
- Rating4.8
- Reviews80
-
The Pilates Spine Corrector: For inner and outer strength and length (The Pilates Equipment)
by Reiner Grootenhuis
- Price$46.73
- Rating5.0
- Reviews7
- Published2025-11
-
The Pilates Reformer: Part II: Modern Reformer Exercises & Pilates Jumpboard (The Pilates Equipment Book 6)
by Reiner Grootenhuis
- Price$35
- Rating4.5
- Reviews27
-
The Pilates Reformer: Part II: Modern Reformer Exercises & Pilates Jumpboard (The Pilates Equipment)
by Reiner Grootenhuis
- Price$35.11
- Rating4.5
- Reviews27
-
The Pilates Ped-O-Pul: Exercises for better posture, healthy shoulders and balance (The Pilates Equipment Book 7)
by Reiner Grootenhuis
- Price$9.99
- Rating4.6
- Reviews10
-
The Pilates Arm Chair: The 42 most effective exercises (The Pilates Equipment Book 2)
by Reiner Grootenhuis
- Price$9
- Rating4.2
- Reviews11
-
Einführung in den Wunda Chair (German Edition)
by Reiner Grootenhuis
- Price$21.10
- Rating4.5
- Reviews15
Main categories
FAQ
How many books does Reiner Grootenhuis have on Amazon?
KDPTop tracks 14 of their books; 13 made an Amazon list in the last 30 days.
Which categories does Reiner Grootenhuis publish in?
Their books chart most often in Pilates, Gymnastics, Backache.
How does Reiner Grootenhuis price their books?
The median price is $35; half of the books cost $21.10–$36.04.
Has Reiner Grootenhuis released new books recently?
0 new books in the last 30 days.
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.