KDP categories · Top KDP authors
R.L. Ullman: Amazon KDP author data
As of Nov 6, 2026, R.L. Ullman has 26 books on Amazon, 23 of them on a best-seller list in the last 30 days (best rank #5), mostly in Intermediate Readers, Entertainment & Games, Arthurian.
| Median price | $9.74 |
|---|---|
| Price range (middle 50%) | $4.99 – $11.49 |
| Median reviews | 546 |
| Total reviews | 21,411 |
| New books (30 days) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- 88% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $9.74, 95% above the median of their main category, Intermediate Readers.
R.L. Ullman's best-ranked books
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The Boy with Video Game Powers
by R.L. Ullman
- Price$3.99
- Rating4.7
- Reviews1,146
- Published2024-05
-
Unlegendary Dragon: The Magical Kids of Lore (Unlegendary Dragon Fantasy Adventure Series Book 1)
by R.L. Ullman
- Price$3.99
- Rating4.6
- Reviews249
-
The Boy with Video Game Powers
by R.L. Ullman
- Price$7.24
- Rating4.7
- Reviews1,146
-
The Boy with Video Game Powers: Book 2: Rescue Mode
by R.L. Ullman
- Price$3.99
- Rating4.7
- Reviews613
-
Unlegendary Dragon 2: The Fall of Camelot (Unlegendary Dragon Fantasy Adventure Series)
by R.L. Ullman
- Price$4.99
- Rating4.8
- Reviews160
-
Unlegendary Dragon: The Magical Kids of Lore (Unlegendary Dragon Fantasy Adventure Series)
by R.L. Ullman
- Price$9.49
- Rating4.6
- Reviews249
- Published2022-03
-
The Boy with Video Game Powers: Book 2: Rescue Mode
by R.L. Ullman
- Price$9.99
- Rating4.7
- Reviews613
-
Unlegendary Dragon 3: The Battle for Avalon (Unlegendary Dragon Fantasy Adventure Series)
by R.L. Ullman
- Price$4.99
- Rating4.9
- Reviews143
-
Unlegendary Dragon 2: The Fall of Camelot (Unlegendary Dragon Fantasy Adventure Series)
by R.L. Ullman
- Price$11.99
- Rating4.8
- Reviews160
- Published2022-07
-
Epic Zero: Books 7-9 (Tales of a Not-So-Super 6th Grader 3-Book Collections)
by R.L. Ullman
- Price$9.99
- Rating4.9
- Reviews385
Main categories
FAQ
How many books does R.L. Ullman have on Amazon?
KDPTop tracks 26 of their books; 23 made an Amazon list in the last 30 days.
Which categories does R.L. Ullman publish in?
Their books chart most often in Intermediate Readers, Entertainment & Games, Arthurian.
How does R.L. Ullman price their books?
The median price is $9.74; half of the books cost $4.99–$11.49.
Has R.L. Ullman 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.