KDP categories · Top KDP authors
Harper: Amazon KDP author data
As of Nov 6, 2026, Harper has 11 books on Amazon, 10 of them on a best-seller list in the last 30 days (best rank #3), mostly in Horror Fiction, Short Stories, LGBTQ+ Horror.
| Median price | $9.95 |
|---|---|
| Price range (middle 50%) | $3.99 – $10.59 |
| Median reviews | 8,050 |
| Total reviews | 96,857 |
| New books (30 days) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- 91% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $9.95, 28% below the median of their main category, Horror Fiction.
Harper's best-ranked books
-
Sapiens: A Brief History of Humankind
by Harper
- Price$25.89
- Rating4.6
- Reviews134,015
- Published2017-08
-
A People's History of the United States
by Harper
- Price$39.99
- Rating4.7
- Reviews17,651
- Published2009-12
-
Partita: A Novel
by Harper
- Price$24.95
- Rating4.4
- Reviews1,798
- Published2026-10
-
The Subtle Art of Not Giving a F*ck: A Counterintuitive Approach to Living a Good Life
by Harper
- Price$18.89
- Rating4.5
- Reviews162,513
- Published2016-09
-
I'm a Therapist, and My Patient is Going to be the Next School Shooter: 6 Patient Files That Will Keep You Up At Night (Dr. Harper Therapy Book 1)
by Harper
- Price$3.99
- Rating4.0
- Reviews21,871
-
Demon Copperhead: A Novel
by Harper
- Price$36.19
- Rating4.6
- Reviews159,104
- Published2022-10
-
Whistler: A Novel
by Harper
- Price$26.09
- Rating4.5
- Reviews52,312
- Published2026-06
-
Predictably Irrational: The Hidden Forces That Shape Our Decisions
by Harper
- Price$15.24
- Rating4.5
- Reviews11,464
- Published2008-02
-
My Grandfather's Son: A Memoir
by Harper
- Price$22.79
- Rating4.8
- Reviews2,468
- Published2021-10
-
Communion: Finding My Way Back to Faith
by Harper
- Price$20.39
- Rating4.7
- Reviews1,595
- Published2026-06
Main categories
FAQ
How many books does Harper have on Amazon?
KDPTop tracks 11 of their books; 10 made an Amazon list in the last 30 days.
Which categories does Harper publish in?
Their books chart most often in Horror Fiction, Short Stories, LGBTQ+ Horror.
How does Harper price their books?
The median price is $9.95; half of the books cost $3.99–$10.59.
Has Harper 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.