KDP categories · Top KDP authors
Transplants: Amazon KDP category data
Amazon Books Best Sellers data for Transplants, updated Nov 2, 2026: median price $16.69, median 5 reviews, average rating 4.6 and a KDPTop opportunity score of 29/100 (highly competitive).
| Price range (middle 50%) | $12.99 – $39.99 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 18% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 5% of the parent category Surgery (102), one of the easier corners under it.
- Its review barrier is lower than in 90% of Books categories: the median best seller has only 5 reviews, so new books can chart with few.
- 18% of its best sellers came out in the last 90 days, more than in 87% of Books categories: readers here keep buying new titles.
Top 10 Transplants best sellers
-
Replaceable You: Adventures in Human Anatomy
by Mary Roach
- List rank#1
- Price$17.29
- Rating4.6
- Reviews1,491
-
The Kidney Health Handbook: A Practical Guide to Lab Results, Treatment Options, and Protecting Your Renal Health
by William K. Cullen
- List rank#2
- Price$17.99
- Rating5.0
- Reviews2
-
When Death Becomes Life: Notes from a Transplant Surgeon
by Joshua D. Mezrich
- List rank#3
- Price$3.99
- Rating4.6
- Reviews696
-
Last Night in the OR: A Transplant Surgeon's Odyssey
by Bud Shaw
- List rank#4
- Price$15.79
- Rating4.2
- Reviews385
-
Kidney Surgery Activity Book: A Funny Recovery Gift with Puzzles, Coloring, and Word Games | Great for Kidney Donors, Transplant Recipients, Dialysis, or Stone Relief (Recovery Series)
- List rank#5
- Price$9.99
- Rating4.8
- Reviews5
-
In Pillness and in Health: A Memoir
by Henriette Ivanans
- List rank#6
- Price$5.99
- Rating4.4
- Reviews988
-
The Organ Thieves: The Shocking Story of the First Heart Transplant in the Segregated South
by Chip Jones
- List rank#7
- Price$14.99
- Rating4.5
- Reviews254
-
The Chronic Kidney Disease Solution to Reclaiming Your Health : A Comprehensive Guide to Protecting and Enhancing Kidney Function Naturally and Medically
by Emily J. Reynolds
- List rank#8
- Price$5.99
- Rating4.5
- Reviews24
-
Face in the Mirror: A Surgeon, a Patient, and the Remarkable Story of the First Face Transplant at Mayo Clinic
by Jack El-Hai
- List rank#9
- Price$10.39
- Rating4.8
- Reviews48
-
Hearts: Of Surgeons and Transplants, Miracles and Disasters Along the Cardiac Frontier
by Thomas Thompson
- List rank#10
- Price$12.99
- Rating4.4
- Reviews272
FAQ
Is Transplants a good niche for Amazon KDP?
Its KDPTop opportunity score is 29/100, which makes it highly competitive. The median best seller has 5 reviews and sells for $16.69.
How many reviews do you need to rank in Transplants?
The median best seller has 5 reviews, and 95% of them have fewer than 100.
What do Transplants best sellers cost?
The median price is $16.69; half of the best sellers are priced between $12.99 and $39.99.
Can new books break into Transplants?
18% 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.