KDP categories · Top KDP authors
Joseph C. Jenkins: Amazon KDP author data
As of Nov 6, 2026, Joseph C. Jenkins has 9 books on Amazon, 9 of them on a best-seller list in the last 30 days (best rank #1), mostly in Roofing, Waste Management, Environmental.
| Median price | $30.18 |
|---|---|
| Price range (middle 50%) | $25 – $40.26 |
| Median reviews | 68 |
| Total reviews | 1,808 |
| New books (30 days) | 0 |
| Breakout books (30 days) | 0 |
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 $30.18, 73% above the median of their main category, Roofing.
Joseph C. Jenkins's best-ranked books
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The Humanure Handbook, 4th Edition: Shit in a Nutshell
by Joseph C. Jenkins
- Price$23.30
- Rating4.8
- Reviews548
-
The Compost Toilet Handbook
by Joseph C. Jenkins
- Price$30.18
- Rating4.8
- Reviews54
-
The Slate Roof Bible: Everything You Need to Know About the World’s Finest Roof, 3rd Edition
by Joseph C. Jenkins
- Price$35.90
- Rating4.8
- Reviews73
- Published2016-06
-
The Humanure Handbook: A Guide to Composting Human Manure, Third Edition
by Joseph C. Jenkins
- Price$40.26
- Rating4.7
- Reviews456
-
The Slate Roof Bible: Everything You Need to Know About the World's Finest Roof
by Joseph C. Jenkins
- Price$25
- Reviews-
-
The Humanure Handbook 4th Edition: Shit in a Nutshell
by Joseph C. Jenkins
- Price$9.99
- Rating4.8
- Reviews548
-
The Humanure Handbook: A Guide to Composting Human Manure, 2nd edition
by Joseph C. Jenkins
- Price$118
- Rating4.6
- Reviews63
-
Slate Roofs 1926
by Joseph C. Jenkins
- Price$25
- Rating4.2
- Reviews7
-
The Slate Roof Bible: Understanding, Installing and Restoring the World's Finest Roof (The Slate Roof Bible, 2nd Edition)
by Joseph C. Jenkins
- Price$119
- Rating4.8
- Reviews59
Main categories
FAQ
How many books does Joseph C. Jenkins have on Amazon?
KDPTop tracks 9 of their books; 9 made an Amazon list in the last 30 days.
Which categories does Joseph C. Jenkins publish in?
Their books chart most often in Roofing, Waste Management, Environmental.
How does Joseph C. Jenkins price their books?
The median price is $30.18; half of the books cost $25–$40.26.
Has Joseph C. Jenkins released new books recently?
0 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.