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Carl Boyd: Amazon KDP author data
As of Nov 6, 2026, Carl Boyd has 2 books on Amazon, 2 of them on a best-seller list in the last 30 days (best rank #20), mostly in Nephrology, Critical & Intensive care, Critical Care.
| Median price | $6.99 |
|---|---|
| Price range (middle 50%) | $4.99 – $8.99 |
| Median reviews | 1 |
| Total reviews | 1 |
| New books (30 days) | 2 |
| Breakout books (30 days) | 2 |
What stands out
- Median price $6.99, 30% below the median of their main category, Nephrology.
Carl Boyd's best-ranked books
-
Palliative Care Essentials: A Practical Guide to Symptom Management and End-of-Life Care
by Carl Boyd
- Price$10.99
- Rating5.0
- Reviews1
-
Acute Kidney Injury: A Practical Guide to Diagnosis, Management, and Renal Replacement Therapy
by Carl Boyd
- Price$2.99
- Reviews-
Main categories
FAQ
How many books does Carl Boyd have on Amazon?
KDPTop tracks 2 of their books; 2 made an Amazon list in the last 30 days.
Which categories does Carl Boyd publish in?
Their books chart most often in Nephrology, Critical & Intensive care, Critical Care.
How does Carl Boyd price their books?
The median price is $6.99; half of the books cost $4.99–$8.99.
Has Carl Boyd 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.