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Bob Kessler: Amazon KDP author data
As of Nov 6, 2026, Bob Kessler has 5 books on Amazon, 5 of them on a best-seller list in the last 30 days (best rank #56), mostly in Heating, Ventilation & Air Conditioning, Energy, Energy Efficiency.
| Median price | $4.99 |
|---|---|
| Price range (middle 50%) | $4.99 – $4.99 |
| Median reviews | 1 |
| Total reviews | 2 |
| New books (30 days) | 5 |
| Breakout books (30 days) | 1 |
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 $4.99, 50% below the median of their main category, Heating, Ventilation & Air Conditioning.
- 5 new books in the last 30 days, 1 of them broke into a Best Sellers list.
Bob Kessler's best-ranked books
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The Backyard Geothermal Loop: How I Cooled My House With 2,000 Feet of Plastic Pipe and a Tank of Water (Home Alternative Energy and Fixes to increase your comfort while saving a few dollars too!)
by Bob Kessler
- Price$4.99
- Rating3.0
- Reviews1
- Published2026-08
-
Cool Air From the Ground Up: A No-Nonsense Homeowner's Guide to Building Earth Tubes That Actually Cool Your House (Home Alternative Energy and Fixes to ... comfort while saving a few dollars too!)
by Bob Kessler
- Price$4.99
- Rating5.0
- Reviews1
-
The Small Solar Handbook: Honest Power for One Job at a Time (Home Alternative Energy and Fixes to increase your comfort while saving a few dollars too!)
by Bob Kessler
- Price$4.99
- Reviews-
-
The Solar-Hydrogen Handbook: Splitting Water on a Workbench (Home Alternative Energy and Fixes to increase your comfort while saving a few dollars too!)
by Bob Kessler
- Price$4.99
- Reviews-
-
The DIY Mini-Split Guide: A Homeowner's Plain-English Plan to Choose, Size, and Get the Most From a Ductless Heat Pump (Home Alternative Energy and Fixes ... comfort while saving a few dollars too!)
by Bob Kessler
- Price$4.99
- Reviews-
Main categories
FAQ
How many books does Bob Kessler have on Amazon?
KDPTop tracks 5 of their books; 5 made an Amazon list in the last 30 days.
Which categories does Bob Kessler publish in?
Their books chart most often in Heating, Ventilation & Air Conditioning, Energy, Energy Efficiency.
How does Bob Kessler price their books?
The median price is $4.99; half of the books cost $4.99–$4.99.
Has Bob Kessler released new books recently?
5 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.