KDP categories · Top KDP authors
John Preston ABPP: Amazon KDP author data
As of Nov 6, 2026, John Preston ABPP has 4 books on Amazon, 4 of them on a best-seller list in the last 30 days (best rank #1), mostly in Psychopharmacology, Drug Guides, Mental Health.
| Median price | $24.47 |
|---|---|
| Price range (middle 50%) | $21.71 – $27.23 |
| Median reviews | 834 |
| Total reviews | 2,913 |
| New books (30 days) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- Median price $24.47, 36% below the median of their main category, Psychopharmacology.
John Preston ABPP's best-ranked books
-
Clinical Psychopharmacology Made Ridiculously Simple
by John Preston ABPP
- Price$18.95
- Rating4.6
- Reviews1,171
- Published2023-07
-
Clinical Psychopharmacology Made Ridiculously Simple
by John Preston ABPP
- Price-
- Rating4.1
- Reviews75
-
Clinical Psychopharmacology Made Ridiculously Simple (Medmaster)
by John Preston ABPP
- Price-
- Rating4.6
- Reviews498
-
Clinical Psychopharmacology Made Ridiculously Simple
by John Preston ABPP
- Price$29.99
- Rating4.6
- Reviews1,169
Main categories
FAQ
How many books does John Preston ABPP have on Amazon?
KDPTop tracks 4 of their books; 4 made an Amazon list in the last 30 days.
Which categories does John Preston ABPP publish in?
Their books chart most often in Psychopharmacology, Drug Guides, Mental Health.
How does John Preston ABPP price their books?
The median price is $24.47; half of the books cost $21.71–$27.23.
Has John Preston ABPP 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.