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Tiffany Caplan: Amazon KDP author data
As of Nov 6, 2026, Tiffany Caplan has 5 books on Amazon, 5 of them on a best-seller list in the last 30 days (best rank #3), mostly in Rheumatic Diseases, Rheumatology, Skin Ailments.
| Median price | $14.39 |
|---|---|
| Price range (middle 50%) | $13.51 – $16.46 |
| Median reviews | 328 |
| Total reviews | 1,640 |
| New books (30 days) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- 100% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $14.39, 20% below the median of their main category, Rheumatic Diseases.
Tiffany Caplan's best-ranked books
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The Lupus Solution: Your Step-By-Step Functional Medicine Guide to Understanding Lupus, Avoiding Flares and Achieving Long-Term Remission
by Tiffany Caplan
- Price$7.99
- Rating4.5
- Reviews328
- Published2019-10
-
The Lupus Solution: Your Step-By-Step Functional Medicine Guide to Understanding Lupus, Avoiding Flares and Achieving Long-Term Remission
by Tiffany Caplan
- Price$14.49
- Rating4.5
- Reviews328
-
The Lupus Solution: Your Step-By-Step Functional Medicine Guide to Understanding Lupus, Avoiding Flares and Achieving Long-Term Remission
by Tiffany Caplan
- Price$22.36
- Rating4.5
- Reviews328
-
The Lupus Solution: Your Step-By-Step Functional Medicine Guide to Understanding Lupus, Avoiding Flares, and Achieving Long-Term Remission
by Tiffany Caplan
- Price$11.18
- Rating4.5
- Reviews328
-
The Lupus Solution: Your Step-By-Step Functional Medicine Guide to Understanding Lupus, Avoiding Flares and Achieving Long-Term Remission
by Tiffany Caplan
- Price$14.29
- Rating4.5
- Reviews328
Main categories
FAQ
How many books does Tiffany Caplan have on Amazon?
KDPTop tracks 5 of their books; 5 made an Amazon list in the last 30 days.
Which categories does Tiffany Caplan publish in?
Their books chart most often in Rheumatic Diseases, Rheumatology, Skin Ailments.
How does Tiffany Caplan price their books?
The median price is $14.39; half of the books cost $13.51–$16.46.
Has Tiffany Caplan 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.