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Lewis Vaughn: Amazon KDP author data
As of Nov 6, 2026, Lewis Vaughn has 11 books on Amazon, 11 of them on a best-seller list in the last 30 days (best rank #3), mostly in Logic, Ethics, Medical Ethics.
| Median price | $79.99 |
|---|---|
| Price range (middle 50%) | $73.50 – $101 |
| Median reviews | 47 |
| Total reviews | 1,165 |
| 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 $79.99, 126% above the median of their main category, Logic.
Lewis Vaughn's best-ranked books
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Writing Philosophy: A Student's Guide to Writing Philosophy Essays
by Lewis Vaughn
- Price-
- Rating4.3
- Reviews99
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Writing Philosophy: A Student's Guide to Reading and Writing Philosophy Essays
by Lewis Vaughn
- Price$32.99
- Rating4.6
- Reviews5
-
Bioethics: Principles, Issues, and Cases
by Lewis Vaughn
- Price$117
- Rating5.0
- Reviews9
-
-
Bioethics: Principles, Issues, and Cases
by Lewis Vaughn
- Price$97.97
- Rating4.5
- Reviews452
-
Concise Guide to Critical Thinking
by Lewis Vaughn
- Price$101
- Rating4.3
- Reviews57
-
Concise Guide to Critical Thinking
by Lewis Vaughn
- Price$74.99
- Rating4.8
- Reviews16
-
The Power of Critical Thinking: Effective Reasoning about Ordinary and Extraordinary Claims
by Lewis Vaughn
- Price$47.70
- Rating4.3
- Reviews30
-
Doing Ethics: Moral Reasoning and Contemporary Moral Issues
by Lewis Vaughn
- Price$73.50
- Rating4.3
- Reviews37
-
Medical Terminology 350 BYVaughn
by Lewis Vaughn
- Price$130
- Rating4.4
- Reviews274
Main categories
FAQ
How many books does Lewis Vaughn have on Amazon?
KDPTop tracks 11 of their books; 11 made an Amazon list in the last 30 days.
Which categories does Lewis Vaughn publish in?
Their books chart most often in Logic, Ethics, Medical Ethics.
How does Lewis Vaughn price their books?
The median price is $79.99; half of the books cost $73.50–$101.
Has Lewis Vaughn 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.