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Jason Gregory: Amazon KDP author data
As of Nov 6, 2026, Jason Gregory has 8 books on Amazon, 6 of them on a best-seller list in the last 30 days (best rank #3), mostly in Graphics & Multimedia, Graphics & Visualization, Game Design.
| Median price | $77.59 |
|---|---|
| Price range (middle 50%) | $74.11 – $116 |
| Median reviews | 4 |
| Total reviews | 378 |
| New books (30 days) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- 75% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $77.59, 159% above the median of their main category, Graphics & Multimedia.
Jason Gregory's best-ranked books
-
Game Engine Architecture: Two Volume Set
by Jason Gregory
- Price$136
- Rating4.1
- Reviews8
-
Game Engine Architecture: Volume II, Graphics, Motion, and Sound
by Jason Gregory
- Price$73.71
- Rating3.5
- Reviews3
-
Game Engine Architecture: Volume II, Graphics, Motion, and Sound
by Jason Gregory
- Price$77.59
- Rating3.5
- Reviews3
-
Game Engine Architecture: Volume I, Foundations and Core Engine Systems
by Jason Gregory
- Price$69.59
- Rating3.1
- Reviews4
-
Game Engine Architecture: Volume I, Foundations and Core Engine Systems
by Jason Gregory
- Price$96.57
- Rating3.1
- Reviews4
-
Game Engine Architecture
by Jason Gregory
- Price$74.51
- Rating4.6
- Reviews323
-
The Tradition of Natural Taoism: The Way of Free and Easy Wandering in Oneness
by Jason Gregory
- Price$0
- Rating4.6
- Reviews29
-
Game Engine Architecture: Volume I, Foundations and Core Engine Systems
by Jason Gregory
- Price$250
- Rating3.1
- Reviews4
- Published2026-04
Main categories
FAQ
How many books does Jason Gregory have on Amazon?
KDPTop tracks 8 of their books; 6 made an Amazon list in the last 30 days.
Which categories does Jason Gregory publish in?
Their books chart most often in Graphics & Multimedia, Graphics & Visualization, Game Design.
How does Jason Gregory price their books?
The median price is $77.59; half of the books cost $74.11–$116.
Has Jason Gregory 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.