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Oliver Walker: Amazon KDP author data
As of Nov 6, 2026, Oliver Walker has 7 books on Amazon, 6 of them on a best-seller list in the last 30 days (best rank #57), mostly in Aeronautics & Astronautics, Astronautics & Space Flight, Aerospace.
| Median price | $4.95 |
|---|---|
| Price range (middle 50%) | $4.95 – $12.45 |
| Median reviews | 1 |
| Total reviews | 2 |
| New books (30 days) | 5 |
| Breakout books (30 days) | 0 |
What stands out
- 86% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $4.95, 57% below the median of their main category, Aeronautics & Astronautics.
- 5 new books in the last 30 days.
Oliver Walker's best-ranked books
-
Voices Across the Void: NASA’s Deep Space Network History Missions and Engineering
by Oliver Walker
- Price$4.95
- Reviews-
-
The Viking Landers: NASA's Pioneering Mars Surface Missions
by Oliver Walker
- Price$19.95
- Rating5.0
- Reviews1
-
Mir: Peace in Orbit: A Comprehensive History of the Soviet and Russian Space Station
by Oliver Walker
- Price$19.95
- Rating5.0
- Reviews1
- Published2026-04
-
Wings of a New Frontier: The NASA Space Shuttle from Cooperation to Conclusion 1995 to 2011 Volume Two
by Oliver Walker
- Price$4.95
- Reviews-
-
SKYLAB: America's First Space Station
by Oliver Walker
- Price$4.95
- Reviews-
-
Artemis and the Return to the Moon
by Oliver Walker
- Price$4.95
- Reviews-
-
Wings of a New Frontier: The NASA Space Shuttle from Concept to 1994 Volume One
by Oliver Walker
- Price$4.95
- Reviews-
Main categories
FAQ
How many books does Oliver Walker have on Amazon?
KDPTop tracks 7 of their books; 6 made an Amazon list in the last 30 days.
Which categories does Oliver Walker publish in?
Their books chart most often in Aeronautics & Astronautics, Astronautics & Space Flight, Aerospace.
How does Oliver Walker price their books?
The median price is $4.95; half of the books cost $4.95–$12.45.
Has Oliver Walker released new books recently?
5 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.