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Leonard Hartwell: Amazon KDP author data
As of Nov 6, 2026, Leonard Hartwell has 4 books on Amazon, 4 of them on a best-seller list in the last 30 days (best rank #2), mostly in Programming & App Development, Swift, Programming Languages.
| Median price | $95.48 |
|---|---|
| Price range (middle 50%) | $22.99 – $163 |
| Median reviews | 3 |
| Total reviews | 6 |
| New listings (30 days, incl. new editions) | 2 |
| Breakout books (30 days) | 2 |
What stands out
- Median price $95.48, 194% above the median of their main category, Programming & App Development.
Leonard Hartwell's best-ranked books
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iOS 27 Programming with Swift 6: Build AI-Powered Apps with Foundation Models, Apple Intelligence, App Intents, Siri & Xcode 27 (DevTech series)
by Leonard Hartwell
- Price$27.99
- Reviews-
- Published2026-09
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FUNDAMENTALS of DIAGNOSTIC RADIOLOGY: Integrating Technology and Clinical Reasoning in Radiology
by Leonard Hartwell
- Price$163
- Rating5.0
- Reviews3
-
iOS 27 Programming with Swift 6: Build AI-Powered Apps with Foundation Models, Apple Intelligence, App Intents, Siri & Xcode 27 (DevTech series Book 19)
by Leonard Hartwell
- Price$7.99
- Reviews-
-
FUNDAMENTALS of DIAGNOSTIC RADIOLOGY: Integrating Technology and Clinical Reasoning in Radiology
by Leonard Hartwell
- Price$163
- Rating5.0
- Reviews3
Main categories
FAQ
How many books does Leonard Hartwell have on Amazon?
KDPTop tracks 4 of their books; 4 made an Amazon list in the last 30 days.
Which categories does Leonard Hartwell publish in?
Their books chart most often in Programming & App Development, Swift, Programming Languages.
How does Leonard Hartwell price their books?
The median price is $95.48; half of the books cost $22.99–$163.
Has Leonard Hartwell 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.