KDP categories · Top KDP authors
Nephrology (Clinical, Books): Amazon KDP category data
Amazon Books Best Sellers data for Nephrology (Clinical, Books), updated Nov 2, 2026: median price $78.22, median 4 reviews, average rating 4.5 and a KDPTop opportunity score of 31/100 (highly competitive).
| Price range (middle 50%) | $34.99 – $145 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 19% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 1% of the parent category Clinical (312), one of the easier corners under it.
- At $78.22 its median price beats 99% of Books categories, leaving more margin per copy.
- Its review barrier is lower than in 92% of Books categories: the median best seller has only 4 reviews, so new books can chart with few.
Top 10 Nephrology best sellers
-
Acid-Base, Fluids, and Electrolytes Made Ridiculously Simple: Color Edition
by Richard A. Preston M.D.
- List rank#1
- Price$27.95
- Rating4.7
- Reviews456
-
HESI A2 Full Study Guide 3rd Edition: Complete Subject Review, 3 Full Practice Tests, 900 Realistic Questions, Online Flashcards, 100 video lessons
by Smart Edition
- List rank#2
- Price$31.91
- Rating4.7
- Reviews733
-
Brenner & Rector's The Kidney 2-Volume Set
by Valerie Luyckx MBBCh MSc
- List rank#3
- Price$420
- Rating4.2
- Reviews7
-
The Nephrology and Dialysis Nurse Pocket Guide
- List rank#4
- Price$34.99
- Reviews-
-
Nephrology and Hypertension Board Review: Print + eBook with Multimedia: + Practice Test
by PHUONG-CHI PHAM
- List rank#5
- Price$104
- Rating4.0
- Reviews7
-
-
Atlas of Radiology in Pediatric Kidney Disorders
by Sidharth Kumar Sethi
- List rank#7
- Price$201
- Reviews-
-
Certified Nephrology Nurse Study Guide 2026-2027: CNN Certification Exam Preparation for Registered Nurses: Hemodialysis, Peritoneal Dialysis, CRRT, Transplant Care, and Kidney Disease Management
by DAWN WILLIAMS
- List rank#8
- Price$39.95
- Reviews-
-
Seldin and Giebisch's The Kidney: Physiology and Pathophysiology
by Robert J. Alpern
- List rank#9
- Price$539
- Rating2.5
- Reviews2
-
Oxford Handbook of Clinical Medicine (Oxford Medical Handbooks)
by Ian B. Wilkinson
- List rank#10
- Price$45
- Rating4.7
- Reviews263
FAQ
Is Nephrology a good niche for Amazon KDP?
Its KDPTop opportunity score is 31/100, which makes it highly competitive. The median best seller has 4 reviews and sells for $78.22.
How many reviews do you need to rank in Nephrology?
The median best seller has 4 reviews, and 88% of them have fewer than 100.
What do Nephrology best sellers cost?
The median price is $78.22; half of the best sellers are priced between $34.99 and $145.
Can new books break into Nephrology?
19% of the current best sellers were released in the last 90 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.