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Christof Spieler: Amazon KDP author data
As of Nov 6, 2026, Christof Spieler has 4 books on Amazon, 4 of them on a best-seller list in the last 30 days (best rank #1), mostly in Mass Transit, Wisconsin, Toronto.
| Median price | $37.54 |
|---|---|
| Price range (middle 50%) | $31.05 – $42.08 |
| Median reviews | 10 |
| Total reviews | 72 |
| New books (30 days) | 2 |
| Breakout books (30 days) | 1 |
What stands out
- Median price $37.54, 48% above the median of their main category, Mass Transit.
Christof Spieler's best-ranked books
-
Trains, Buses, People, Second Edition: An Opinionated Atlas of US and Canadian Transit
by Christof Spieler
- Price$40.10
- Rating4.4
- Reviews18
-
Transportation and the Shape of Cities
by Christof Spieler
- Price$34.98
- Rating3.0
- Reviews2
-
Trains, Buses, People: An Opinionated Atlas of US Transit
by Christof Spieler
- Price$48
- Rating4.6
- Reviews50
-
Transportation and the Shape of Cities
by Christof Spieler
- Price$19.25
- Rating3.0
- Reviews2
Main categories
FAQ
How many books does Christof Spieler have on Amazon?
KDPTop tracks 4 of their books; 4 made an Amazon list in the last 30 days.
Which categories does Christof Spieler publish in?
Their books chart most often in Mass Transit, Wisconsin, Toronto.
How does Christof Spieler price their books?
The median price is $37.54; half of the books cost $31.05–$42.08.
Has Christof Spieler released new books recently?
2 new books in the last 30 days, 1 of which reached a Best Sellers list.
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.