KDP categories · Top KDP authors
William P. Bengen: Amazon KDP author data
As of Nov 6, 2026, William P. Bengen has 2 books on Amazon, 2 of them on a best-seller list in the last 30 days (best rank #6), mostly in Personal Finance, Finance, Investing.
| Median price | $13.60 |
|---|---|
| Price range (middle 50%) | $12.90 – $14.30 |
| Median reviews | 353 |
| Total reviews | 706 |
| New listings (30 days, incl. new editions) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- Median price $13.60, 36% above the median of their main category, Personal Finance.
William P. Bengen's best-ranked books
-
A Richer Retirement: Supercharging the 4% Rule to Spend More and Enjoy More
by William P. Bengen
- Price$12.20
- Rating4.5
- Reviews353
- Published2025-08
-
A Richer Retirement: Supercharging the 4% Rule to Spend More and Enjoy More
by William P. Bengen
- Price$15
- Rating4.5
- Reviews353
Main categories
FAQ
How many books does William P. Bengen have on Amazon?
KDPTop tracks 2 of their books; 2 made an Amazon list in the last 30 days.
Which categories does William P. Bengen publish in?
Their books chart most often in Personal Finance, Finance, Investing.
How does William P. Bengen price their books?
The median price is $13.60; half of the books cost $12.90–$14.30.
Has William P. Bengen 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.