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Rex Knight: Amazon KDP author data
Rex Knight has 10 books on Amazon, 9 of them on a best-seller list in the last 30 days (best rank #11), mostly in Superhero, Military, War & Military.
10Books on Amazon
9Listed in 30 days
3.8Average rating
| Median price | $2.99 |
|---|---|
| Price range (middle 50%) | $2.99 – $3.99 |
| Median reviews | 5 |
| Total reviews | 55 |
| New books (30 days) | 9 |
| Breakout books (30 days) | 6 |
What stands out
- 90% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $2.99, 50% below the median of their main category, Superhero.
- 9 new books in the last 30 days, 6 of them broke into a Best Sellers list.
Rex Knight's best-ranked books
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Vanguard Harem: A Military Progression LitRPG (Battleframes of Aether Book 1)
by Rex Knight
- Price$0.99
- Rating4.2
- Reviews24
-
Ultimate Harem Summoner: An OP MC LitRPG Adventure (Summoner’s Dominion Book 1)
by Rex Knight
- Price$0.99
- Rating4.2
- Reviews10
-
Vanguard Harem: A Military Progression LitRPG (Battleframes of Aether Book 2)
by Rex Knight
- Price$2.99
- Rating4.1
- Reviews8
-
Ultimate Harem Summoner: An OP MC LitRPG Adventure (Summoner’s Dominion Book 2)
by Rex Knight
- Price$2.99
- Rating3.0
- Reviews4
-
Ultimate Harem Summoner: An OP MC LitRPG Adventure (Summoner’s Dominion Book 3)
by Rex Knight
- Price$2.99
- Rating2.0
- Reviews2
-
Vanguard Harem: A Military Progression LitRPG (Battleframes of Aether Book 3)
by Rex Knight
- Price$2.99
- Rating4.6
- Reviews5
-
Vanguard Harem: A Military Progression LitRPG (Battleframes of Aether Book 4)
by Rex Knight
- Price$3.99
- Rating4.5
- Reviews2
-
-
Vanguard Harem: A Military Progression LitRPG (Battleframes of Aether Book 5)
by Rex Knight
- Price$3.99
- Reviews-
-
Eldritch Harem: A Dark Isekai Harem Adventure
by Rex Knight
- Price$0
- Reviews-
- Published2026-10
Main categories
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.