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Michael Robertson: Amazon KDP author data
Michael Robertson has 115 books on Amazon, 50 of them on a best-seller list in the last 30 days (best rank #1), mostly in Zombies, Apocalyptic & Post-Apocalyptic, Military.
115Books on Amazon
50Listed in 30 days
4.3Average rating
| Median price | $3.99 |
|---|---|
| Price range (middle 50%) | $3.99 – $3.99 |
| Median reviews | 142 |
| Total reviews | 38,686 |
| New books (30 days) | 3 |
| Breakout books (30 days) | 2 |
What stands out
- 3 new books in the last 30 days, 2 of them broke into a Best Sellers list.
Michael Robertson's best-ranked books
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Beyond These Walls - Books 1 - 6 Boxset: A Post-Apocalyptic Survival Thriller (Beyond These Walls Boxset)
by Michael Robertson
- Price$0.99
- Rating4.4
- Reviews4,730
-
Beyond These Walls - Books 7 - 9 Box Set: A Post-Apocalyptic Survival Thriller (Beyond These Walls Boxset Book 2)
by Michael Robertson
- Price$6.99
- Rating4.6
- Reviews1,058
-
Beyond These Walls - Books 10 - 12 Box Set: A Post-Apocalyptic Survival Thriller (Beyond These Walls Boxset Book 3)
by Michael Robertson
- Price$7.99
- Rating4.6
- Reviews1,021
-
Contingency: A Post-Apocalyptic Survival Thriller (Beyond These Walls Book 23)
by Michael Robertson
- Price$3.99
- Rating4.5
- Reviews76
-
Beyond These Walls - Books 13 - 15 Box Set: A Post-Apocalyptic Survival Thriller (Beyond These Walls Boxset Book 4)
by Michael Robertson
- Price$9.99
- Rating4.5
- Reviews386
-
Beyond These Walls - Books 16 - 18 Box Set: A Post-Apocalyptic Survival Thriller (Beyond These Walls Boxset Book 5)
by Michael Robertson
- Price$9.99
- Rating4.6
- Reviews356
-
The Asylum: A Post-Apocalyptic Survival Thriller (Beyond These Walls Book 7)
by Michael Robertson
- Price$3.99
- Rating4.6
- Reviews587
-
Beyond These Walls - Books 19 - 21: A Post-Apocalyptic Survival Thriller (Beyond These Walls Boxset Book 6)
by Michael Robertson
- Price$9.99
- Rating4.6
- Reviews126
-
Between Fury and Fear: A Post-Apocalyptic Survival Thriller (Beyond These Walls Book 8)
by Michael Robertson
- Price$3.99
- Rating4.5
- Reviews406
-
Inside These Walls: A Post-Apocalyptic Survival Thriller (Beyond These Walls Book 20)
by Michael Robertson
- Price$3.99
- Rating4.4
- Reviews218
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.