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Christopher Vale: Amazon KDP author data
As of Nov 6, 2026, Christopher Vale has 4 books on Amazon, 3 of them on a best-seller list in the last 30 days (best rank #18), mostly in Environmental, Engineering, Water Supply & Land Use.
| Median price | $16.39 |
|---|---|
| Price range (middle 50%) | $8.81 – $27.77 |
| Median reviews | 2 |
| Total reviews | 4 |
| New listings (30 days, incl. new editions) | 3 |
| Breakout books (30 days) | 1 |
What stands out
- Median price $16.39, 21% below the median of their main category, Environmental.
- 3 new listings in the last 30 days (new editions included), 1 of them broke into a Best Sellers list.
Christopher Vale's best-ranked books
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WATER FROM AIR FOR BEGINNERS: The Practical Guide to Atmospheric Water Generators, DIY Harvesting Systems, Dew and Fog Collection, Desiccants, Safe Water Treatment, and Off-Grid Solutions
by Christopher Vale
- Price$23.69
- Rating5.0
- Reviews2
- Published2026-09
-
WATER FROM AIR FOR BEGINNERS: The Practical Guide to Atmospheric Water Generators, DIY Harvesting Systems, Dew and Fog Collection, Desiccants, Safe Water Treatment, and Off-Grid Solutions
by Christopher Vale
- Price$39.99
- Rating5.0
- Reviews2
- Published2026-09
-
Before The Next Bell: A story of teaching, belonging, and the students who change us
by Christopher Vale
- Price$7.99
- Reviews-
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Ai for Business Analyst: Practical AI Skills, Tools, and Use Cases to Transform Requirements, Insights, and Stakeholder Value
by Christopher Vale
- Price$9.09
- Reviews-
Main categories
FAQ
How many books does Christopher Vale have on Amazon?
KDPTop tracks 4 of their books; 3 made an Amazon list in the last 30 days.
Which categories does Christopher Vale publish in?
Their books chart most often in Environmental, Engineering, Water Supply & Land Use.
How does Christopher Vale price their books?
The median price is $16.39; half of the books cost $8.81–$27.77.
Has Christopher Vale released new books recently?
3 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.