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Karl Knopf: Amazon KDP author data
As of Nov 6, 2026, Karl Knopf has 32 books on Amazon, 26 of them on a best-seller list in the last 30 days (best rank #1), mostly in Equipment & Supplies, Musculoskeletal Diseases, Hip & Thigh Workouts.
| Median price | $11.85 |
|---|---|
| Price range (middle 50%) | $8.99 – $14.16 |
| Median reviews | 130 |
| Total reviews | 8,498 |
| New books (30 days) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- 81% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $11.85, 26% below the median of their main category, Equipment & Supplies.
Karl Knopf's best-ranked books
-
Resistance Band Workbook: Illustrated Step-by-Step Guide to Stretching, Strengthening and Rehabilitative Techniques
by Karl Knopf
- Price$9.49
- Rating4.4
- Reviews865
- Published2013-04
-
Kettlebells for 50+: Safe and Customized Programs for Building & Toning Every Muscle
by Karl Knopf
- Price$11.99
- Rating4.1
- Reviews113
-
Injury Rehab with Resistance Bands: Complete Anatomy and Rehabilitation Programs for Back, Neck, Shoulders, Elbows, Hips, Knees, Ankles and More
by Karl Knopf
- Price$11.99
- Rating4.3
- Reviews303
- Published2015-08
-
Heal Your Frozen Shoulder: An At-Home Rehab Program to End Pain and Regain Range of Motion
by Karl Knopf
- Price$11.99
- Rating4.2
- Reviews42
-
Therapy Ball Workbook: Illustrated Step-by-Step Guide to Stretching, Strengthening, and Rehabilitative Techniques
by Karl Knopf
- Price$0
- Rating4.5
- Reviews21
- Published2014-06
-
Resistance Band Workbook: Illustrated Step-by-Step Guide to Stretching, Strengthening and Rehabilitative Techniques
by Karl Knopf
- Price$9.99
- Rating4.4
- Reviews865
-
Make the Pool Your Gym: No-Impact Water Workouts for Getting Fit, Building Strength and Rehabbing from Injury
by Karl Knopf
- Price$3.99
- Rating4.4
- Reviews915
-
Injury Rehab with Resistance Bands: Complete Anatomy and Rehabilitation Programs for Back, Neck, Shoulders, Elbows, Hips, Knees, Ankles and More
by Karl Knopf
- Price$13.29
- Rating4.3
- Reviews303
-
Stability Workouts on the Balance Board: Illustrated Step-by-Step Guide to Toning, Strengthening and Rehabilitative Techniques
by Karl Knopf
- Price$8.24
- Rating4.4
- Reviews132
-
Foam Roller Workbook: Illustrated Step-by-Step Guide to Stretching, Strengthening & Rehabilitative Techniques
by Karl Knopf
- Price$2.99
- Rating4.1
- Reviews481
- Published2011-04
Main categories
FAQ
How many books does Karl Knopf have on Amazon?
KDPTop tracks 32 of their books; 26 made an Amazon list in the last 30 days.
Which categories does Karl Knopf publish in?
Their books chart most often in Equipment & Supplies, Musculoskeletal Diseases, Hip & Thigh Workouts.
How does Karl Knopf price their books?
The median price is $11.85; half of the books cost $8.99–$14.16.
Has Karl Knopf 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.