KDP categories · Top KDP authors
Torren Valeck: Amazon KDP author data
As of Nov 6, 2026, Torren Valeck has 4 books on Amazon, 3 of them on a best-seller list in the last 30 days (best rank #5), mostly in Engineering, Mechanical, Hydraulics.
| Median price | $12.99 |
|---|---|
| Price range (middle 50%) | $12.49 – $41.49 |
| Median reviews | 1 |
| Total reviews | 2 |
| New listings (30 days, incl. new editions) | 3 |
| Breakout books (30 days) | 3 |
What stands out
- Median price $12.99, 30% above the median of their main category, Engineering.
- 3 new listings in the last 30 days (new editions included), 3 of them broke into a Best Sellers list.
Torren Valeck's best-ranked books
-
Diesel Engine Diagnostic & Troubleshooting Handbook: Measurement-First Testing and Repair for Fuel Injection, Common-Rail, Turbochargers, DPF/SCR, Electrical Controls, and Performance Problems
by Torren Valeck
- Price$11.99
- Rating5.0
- Reviews1
- Published2026-10
-
Hydronic Heating Diagnostic & Troubleshooting Handbook: Measurement-First Troubleshooting for Boilers, Circulators, Radiant Heating, Hydronic Controls, Flow, and Heat Pumps
by Torren Valeck
- Price$12.99
- Reviews-
-
Pipe Flow & Pump Systems Engineering Handbook: Practical Fluid Flow Calculations for Pipe Sizing, Pressure Loss, Pumps, Valves, NPSH, System Curves, and Troubleshooting
by Torren Valeck
- Price$69.99
- Reviews-
-
Diesel Engine Diagnostic & Troubleshooting Handbook: Measurement-First Testing and Repair for Fuel Injection, Common-Rail Systems, Turbochargers, ... Emissions, and Power-Loss Problems
by Torren Valeck
- Price-
- Rating5.0
- Reviews1
- Published2026-10
Main categories
FAQ
How many books does Torren Valeck have on Amazon?
KDPTop tracks 4 of their books; 3 made an Amazon list in the last 30 days.
Which categories does Torren Valeck publish in?
Their books chart most often in Engineering, Mechanical, Hydraulics.
How does Torren Valeck price their books?
The median price is $12.99; half of the books cost $12.49–$41.49.
Has Torren Valeck released new books recently?
3 new books in the last 30 days, 3 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.