KDP categories · Top KDP authors
John Kaag: Amazon KDP author data
As of Nov 6, 2026, John Kaag has 14 books on Amazon, 14 of them on a best-seller list in the last 30 days (best rank #10), mostly in Pragmatism, Philosophers, Free Will & Determinism.
| Median price | $12.41 |
|---|---|
| Price range (middle 50%) | $10.04 – $14.55 |
| Median reviews | 352 |
| Total reviews | 3,848 |
| New books (30 days) | 1 |
| Breakout books (30 days) | 1 |
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 $12.41, 31% below the median of their main category, Pragmatism.
John Kaag's best-ranked books
-
Sick Souls, Healthy Minds: How William James Can Save Your Life
by John Kaag
- Price$13.26
- Rating4.4
- Reviews352
-
Henry at Work: Thoreau on Making a Living
by John Kaag
- Price$9.50
- Rating4.5
- Reviews30
-
American Philosophy: A Love Story
by John Kaag
- Price$12.82
- Rating4.4
- Reviews420
-
American Philosophy: A Love Story
by John Kaag
- Price$14.03
- Rating4.4
- Reviews420
-
Thinking through Writing: A Guide to Becoming a Better Writer and Thinker (Skills for Scholars)
by John Kaag
- Price$14.72
- Rating4.2
- Reviews29
-
Sick Souls, Healthy Minds: How William James Can Save Your Life
by John Kaag
- Price$9.99
- Rating4.4
- Reviews352
-
American Philosophy: A Love Story
by John Kaag
- Price$10.21
- Rating4.4
- Reviews420
-
Hiking with Nietzsche: On Becoming Who You Are
by John Kaag
- Price$11.99
- Rating4.3
- Reviews497
-
Sick Souls, Healthy Minds: How William James Can Save Your Life
by John Kaag
- Price$9.49
- Rating4.4
- Reviews352
-
American Philosophy: A Love Story
by John Kaag
- Price$10.75
- Rating4.4
- Reviews420
Main categories
FAQ
How many books does John Kaag have on Amazon?
KDPTop tracks 14 of their books; 14 made an Amazon list in the last 30 days.
Which categories does John Kaag publish in?
Their books chart most often in Pragmatism, Philosophers, Free Will & Determinism.
How does John Kaag price their books?
The median price is $12.41; half of the books cost $10.04–$14.55.
Has John Kaag released new books recently?
1 new book in the last 30 days, 1 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.