KDP categories · Top KDP authors
Ethan Kramer: Amazon KDP author data
As of Nov 6, 2026, Ethan Kramer has 2 books on Amazon, 2 of them on a best-seller list in the last 30 days (best rank #1), mostly in Adventure, Military, Science Fiction.
| Median price | $2.99 |
|---|---|
| Price range (middle 50%) | $1.99 – $3.99 |
| Median reviews | 1,044 |
| Total reviews | 2,089 |
| New listings (30 days, incl. new editions) | 2 |
| Breakout books (30 days) | 2 |
What stands out
- Median price $2.99, 50% below the median of their main category, Adventure.
Ethan Kramer's best-ranked books
-
Starship Express
by Ethan Kramer
- Price$0.99
- Rating4.4
- Reviews1,587
- Published2026-08
-
Fowarding Address (Starship Express Book 2)
by Ethan Kramer
- Price$4.99
- Rating4.4
- Reviews503
- Published2026-10
Main categories
FAQ
How many books does Ethan Kramer have on Amazon?
KDPTop tracks 2 of their books; 2 made an Amazon list in the last 30 days.
Which categories does Ethan Kramer publish in?
Their books chart most often in Adventure, Military, Science Fiction.
How does Ethan Kramer price their books?
The median price is $2.99; half of the books cost $1.99–$3.99.
Has Ethan Kramer released new books recently?
2 new books in the last 30 days, 2 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.