KDP categories · Top KDP authors
Adrian Keller: Amazon KDP author data
As of Nov 6, 2026, Adrian Keller has 33 books on Amazon, 18 of them on a best-seller list in the last 30 days (best rank #16), mostly in Basic Sciences, Biological Sciences, History & Criticism.
| Median price | $8.99 |
|---|---|
| Price range (middle 50%) | $7.99 – $12.50 |
| Median reviews | - |
| Total reviews | 0 |
| New books (30 days) | 18 |
| Breakout books (30 days) | 4 |
What stands out
- 55% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $8.99, 45% below the median of their main category, Basic Sciences.
- 18 new books in the last 30 days, 4 of them broke into a Best Sellers list.
Adrian Keller's best-ranked books
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Seeing the Invisible: How Microscopes Reveal a Hidden World
by Adrian Keller
- Price$9.99
- Reviews-
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Lab Math for Biotech & Pharma Lab Technicians: A Practical Workbook for Dilutions, Concentrations, Molarity, Buffers, Serial Dilutions, and Everyday Laboratory Calculations
by Adrian Keller
- Price$8.99
- Reviews-
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Agricultural Science for Beginners: A Friendly Guide to Modern Farming, Soil, Plants, and Sustainable Food Production
by Adrian Keller
- Price$7.69
- Reviews-
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Ancient Indian Texts: A Guided Journey Through the Epics, Vedas, Upanishads, and Wisdom Traditions
by Adrian Keller
- Price$8.59
- Reviews-
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A Brief History of Credit: How Borrowing Built the Modern World
by Adrian Keller
- Price$6.69
- Reviews-
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Behind the Duo: Dec Donnelly's Biography
by Adrian Keller
- Price$28
- Reviews-
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A Brief History of Russia: How a Frozen Frontier Became the World's Largest Country
by Adrian Keller
- Price$11.49
- Reviews-
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The Brain’s Draft of Reality: A Field Guide to Your Own Brain
by Adrian Keller
- Price$4.99
- Reviews-
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Your Body's Secret Service: How Your Immune System Works, and What Happens When It Doesn't
by Adrian Keller
- Price$7.99
- Reviews-
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Decide Before You're Certain: Bayesian Thinking for Product Managers
by Adrian Keller
- Price$9.99
- Reviews-
Main categories
FAQ
How many books does Adrian Keller have on Amazon?
KDPTop tracks 33 of their books; 18 made an Amazon list in the last 30 days.
Which categories does Adrian Keller publish in?
Their books chart most often in Basic Sciences, Biological Sciences, History & Criticism.
How does Adrian Keller price their books?
The median price is $8.99; half of the books cost $7.99–$12.50.
Has Adrian Keller released new books recently?
18 new books in the last 30 days, 4 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.