KDP categories · Top KDP authors
Eugene C. Toy: Amazon KDP author data
As of Nov 6, 2026, Eugene C. Toy has 33 books on Amazon, 32 of them on a best-seller list in the last 30 days (best rank #5), mostly in Clinical Chemistry, Pathology, Education & Training.
| Median price | $38.92 |
|---|---|
| Price range (middle 50%) | $36.34 – $43 |
| Median reviews | 48 |
| Total reviews | 2,430 |
| New listings (30 days, incl. new editions) | 3 |
| Breakout books (30 days) | 3 |
What stands out
- Amazon lists 2 author pages (separate Author IDs) under this name; this page combines them.
- 97% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $38.92, 18% below the median of their main category, Clinical Chemistry.
- 3 new listings in the last 30 days (new editions included), 3 of them broke into a Best Sellers list.
Eugene C. Toy's best-ranked books
-
Case Files Obstetrics and Gynecology, Sixth Edition
by Eugene C. Toy
- Price$43
- Rating4.8
- Reviews47
-
Case Files: Emergency Medicine, Fifth Edition
by Eugene C. Toy
- Price$31.16
- Rating4.8
- Reviews35
-
Case Files Internal Medicine, Fifth Edition (LANGE Case Files)
by Eugene C. Toy
- Price$19.30
- Rating4.6
- Reviews159
-
Case Files Internal Medicine, Sixth Edition
by Eugene C. Toy
- Price$43
- Rating4.7
- Reviews135
-
Case Files Obstetrics and Gynecology, Sixth Edition
by Eugene C. Toy
- Price$36.34
- Rating4.8
- Reviews47
-
Case Files: Family Medicine, Sixth Edition
by Eugene C. Toy
- Price$47.50
- Reviews-
-
Case Files Family Medicine 5th edition
by Eugene C. Toy
- Price$34.99
- Rating4.8
- Reviews155
-
Case Files Internal Medicine, Sixth Edition
by Eugene C. Toy
- Price$19.30
- Rating4.7
- Reviews135
-
Case Files Microbiology, Third Edition
by Eugene C. Toy
- Price$40
- Rating4.6
- Reviews33
-
Case Files Critical Care, Second Edition
by Eugene C. Toy
- Price$45.91
- Rating4.5
- Reviews51
Main categories
FAQ
How many books does Eugene C. Toy have on Amazon?
KDPTop tracks 33 of their books; 32 made an Amazon list in the last 30 days.
Which categories does Eugene C. Toy publish in?
Their books chart most often in Clinical Chemistry, Pathology, Education & Training.
How does Eugene C. Toy price their books?
The median price is $38.92; half of the books cost $36.34–$43.
Has Eugene C. Toy released new books recently?
3 new books in the last 30 days, 3 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.