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David Karpf: Amazon KDP author data
As of Nov 6, 2026, David Karpf has 2 books on Amazon, 2 of them on a best-seller list in the last 30 days (best rank #42), mostly in Computers & Technology, History of Technology, Social Aspects.
| Median price | $22.68 |
|---|---|
| Price range (middle 50%) | $19.03 – $26.34 |
| Median reviews | - |
| Total reviews | 0 |
| New books (30 days) | 2 |
| Breakout books (30 days) | 2 |
What stands out
- Median price $22.68, 37% above the median of their main category, Computers & Technology.
David Karpf's best-ranked books
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Vaporware, Inc.: How Silicon Valley Sells the Future to Control the Present
by David Karpf
- Price$29.99
- Reviews-
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Vaporware, Inc.: How Silicon Valley Sells the Future to Control the Present
by David Karpf
- Price$15.38
- Reviews-
- Published2027-01
Main categories
FAQ
How many books does David Karpf have on Amazon?
KDPTop tracks 2 of their books; 2 made an Amazon list in the last 30 days.
Which categories does David Karpf publish in?
Their books chart most often in Computers & Technology, History of Technology, Social Aspects.
How does David Karpf price their books?
The median price is $22.68; half of the books cost $19.03–$26.34.
Has David Karpf released new books recently?
2 new books in the last 30 days, 2 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.