KDP categories · Top KDP authors
Ruby Wang: Amazon KDP author data
As of Nov 6, 2026, Ruby Wang has 2 books on Amazon, 2 of them on a best-seller list in the last 30 days (best rank #5), mostly in Industries, International, Economics.
| Median price | $29.95 |
|---|---|
| Price range (middle 50%) | $29.95 – $29.95 |
| Median reviews | - |
| Total reviews | 0 |
| New books (30 days) | 2 |
| Breakout books (30 days) | 2 |
What stands out
- Median price $29.95, 91% above the median of their main category, Industries.
Ruby Wang's best-ranked books
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China Cure: The Rise of a Biotech, AI Medicine and Global Health Superpower
by Ruby Wang
- Price$29.95
- Reviews-
- Published2026-10
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China Cure: The Rise of a Biotech, AI Medicine and Global Health Superpower
by Ruby Wang
- Price$29.95
- Reviews-
Main categories
FAQ
How many books does Ruby Wang have on Amazon?
KDPTop tracks 2 of their books; 2 made an Amazon list in the last 30 days.
Which categories does Ruby Wang publish in?
Their books chart most often in Industries, International, Economics.
How does Ruby Wang price their books?
The median price is $29.95; half of the books cost $29.95–$29.95.
Has Ruby Wang 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.