KDP categories · Top KDP authors
Robert Kopf: Amazon KDP author data
As of Nov 6, 2026, Robert Kopf has 16 books on Amazon, 14 of them on a best-seller list in the last 30 days (best rank #19), mostly in Homeopathy, Herpes, Autism.
| Median price | $6.49 |
|---|---|
| Price range (middle 50%) | $6.49 – $6.62 |
| Median reviews | 5 |
| Total reviews | 50 |
| New books (30 days) | 5 |
| Breakout books (30 days) | 0 |
What stands out
- 88% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- 5 new books in the last 30 days.
Robert Kopf's best-ranked books
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Shingles - Herpes zoster naturally treated with Homeopathy and Schuessler salts (homeopathic cell salts): A homeopathic and naturopathic guide
by Robert Kopf
- Price$12.99
- Rating5.0
- Reviews1
-
Tennis elbow - Lateral epicondylitis naturally treated with Homeopathy and Schuessler salts (homeopathic cell salts): A homeopathic and naturopathic guide
by Robert Kopf
- Price$6.49
- Reviews-
-
Inflammatory bowel disease in cats - Treatment with Homeopathy and Schuessler salts: Healthy gut in cats
by Robert Kopf
- Price$6.99
- Reviews-
-
Diabetes treated with Homeopathy and Schuessler salts (homeopathic cell salts): A homeopathic and naturopathic guide
by Robert Kopf
- Price$6.49
- Rating5.0
- Reviews5
-
Rheumatoid arthritis naturally treated with Homeopathy and Schuessler salts (homeopathic tissue salts): A homeopathic and naturopathic guide
by Robert Kopf
- Price$6.49
- Rating3.9
- Reviews5
-
Varicose veins and Spider veins - Treatment with Homeopathy and Schuessler salts: A homeopathic and naturopathic guide
by Robert Kopf
- Price$6.49
- Rating5.0
- Reviews1
-
Glaucoma naturally treated with Homeopathy and Schuessler salts (homeopathic tissue salts): A homeopathic and naturopathic guide
by Robert Kopf
- Price$6.49
- Reviews-
-
Weight loss - How to lose weight and stay slim with Homeopathy and Schuessler salts (cell salts): A homeopathic and naturopathic guide
by Robert Kopf
- Price$6.49
- Rating4.6
- Reviews21
-
Cold sores - Herpes labialis naturally treated with Homeopathy and Schuessler salts (homeopathic cell salts): A homeopathic and naturopathic guide
by Robert Kopf
- Price$6.49
- Reviews-
-
Schuessler salts - Homeopathic cell salts for your health: A naturopathic guide
by Robert Kopf
- Price$6.49
- Rating4.1
- Reviews17
Main categories
FAQ
How many books does Robert Kopf have on Amazon?
KDPTop tracks 16 of their books; 14 made an Amazon list in the last 30 days.
Which categories does Robert Kopf publish in?
Their books chart most often in Homeopathy, Herpes, Autism.
How does Robert Kopf price their books?
The median price is $6.49; half of the books cost $6.49–$6.62.
Has Robert Kopf released new books recently?
5 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.