KDP categories · Top KDP authors
Derek Chance: Amazon KDP author data
Derek Chance has 10 books on Amazon, 10 of them on a best-seller list in the last 30 days (best rank #1), mostly in Emergency Medical Services, Transportation, Emergency.
10Books on Amazon
10Listed in 30 days
4.1Average rating
| Median price | $3.99 |
|---|---|
| Price range (middle 50%) | $3.99 – $8.99 |
| Median reviews | 18 |
| Total reviews | 448 |
| New books (30 days) | 6 |
| Breakout books (30 days) | 3 |
What stands out
- 100% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $3.99, 90% below the median of their main category, Emergency Medical Services.
- 6 new books in the last 30 days, 3 of them broke into a Best Sellers list.
Derek Chance's best-ranked books
-
Crazy Ambulance Stories: Volume 1
by Derek Chance
- Price$3.99
- Rating3.8
- Reviews114
-
Crazy Ambulance Stories: Volume 2
by Derek Chance
- Price$3.99
- Rating4.0
- Reviews79
-
Crazy Ambulance Stories: Volume 3
by Derek Chance
- Price$3.99
- Rating3.9
- Reviews59
-
Crazy Ambulance Stories: Volume 4
by Derek Chance
- Price$3.99
- Rating4.2
- Reviews18
- Published2026-08
-
Crazy Ambulance Stories: Volume 5
by Derek Chance
- Price$2.99
- Rating4.0
- Reviews15
-
Crazy Ambulance Stories: Volume 6
by Derek Chance
- Price$2.99
- Rating4.4
- Reviews9
-
Crazy Ambulance Stories: Volume 1
by Derek Chance
- Price$5.99
- Rating3.8
- Reviews112
-
Crazy Ambulance Stories: Volume 4
by Derek Chance
- Price$9.99
- Rating4.2
- Reviews18
-
Crazy Ambulance Stories: Volume 5
by Derek Chance
- Price$9.99
- Rating4.0
- Reviews15
-
Crazy Ambulance Stories: Volume 6
by Derek Chance
- Price$9.99
- Rating4.4
- Reviews9
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.