KDP categories · Top KDP authors
Oncology & Cancer: Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Oncology & Cancer, updated Nov 2, 2026: median price $8.99, median 21 reviews, average rating 4.5 and a KDPTop opportunity score of 21/100 (highly competitive).
| Price range (middle 50%) | $3.99 – $11.99 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 15% |
| Books on the list | 99 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 24% of the parent category Nursing (88), one of the easier corners under it.
- The same niche in Books scores 33, 12 points higher than here; worth checking both.
- 15% of its best sellers came out in the last 90 days, more than in 78% of Kindle eBooks categories: readers here keep buying new titles.
Top 10 Oncology & Cancer best sellers
-
Cancerland: A Medical Memoir
by David Scadden
- List rank#1
- Price$2.99
- Rating4.2
- Reviews41
-
One Renegade Cell: How Cancer Begins (Science Masters Series)
by Robert A Weinberg
- List rank#2
- Price$1.99
- Rating4.5
- Reviews103
-
The Smart Woman's Guide to Breast Cancer
by Jenn Simmons
- List rank#3
- Price$9.99
- Rating4.7
- Reviews263
-
Mom, You’re Breathing Too Fast
by Christi Andringa
- List rank#4
- Price$0.99
- Rating4.8
- Reviews30
-
Calming The Cancer Chaos: An Oncologist's Guide for Women to Understand, Organize, and Take Control of Their Cancer Care
by Tiffany Troso-Sandoval MD
- List rank#5
- Price$11.99
- Rating5.0
- Reviews25
-
The Immunotherapy Revolution: The Best New Hope For Saving Cancer Patients' Lives
by Jason R. Williams MD
- List rank#6
- Price$0.99
- Rating4.6
- Reviews264
-
Fenbendazole and Ivermectin: The Protocol Guide - Built on 7 Essential Pillars of Integrative Cancer Care
by Emily Dawn
- List rank#7
- Price$1.99
- Rating4.3
- Reviews8
-
OCN Study Guide 2026-2027: All-in-One Oncology Nursing Certification Exam Prep with 500 Practice Questions and 3 Full-Length Practice Exams with Detailed Answer Explanations
- List rank#8
- Price$12.99
- Reviews-
-
FENBENDAZOLE & IVERMECTIN Protocols MASTER BIBLE: A Comprehensive Guide to Cancer Research, Human Trials, Reported Protocols, Safety, Dosing, and the Science Behind Repurposed Drugs
by Theodore Hawthrone
- List rank#9
- Price$7.99
- Reviews-
-
Medicine Hands: Massage Therapy for People with Cancer
by Gayle MacDonald
- List rank#10
- Price$19.99
- Rating4.7
- Reviews184
Same niche in Books: Oncology
FAQ
Is Oncology & Cancer a good niche for Amazon KDP?
Its KDPTop opportunity score is 21/100, which makes it highly competitive. The median best seller has 21 reviews and sells for $8.99.
How many reviews do you need to rank in Oncology & Cancer?
The median best seller has 21 reviews, and 78% of them have fewer than 100.
What do Oncology & Cancer best sellers cost?
The median price is $8.99; half of the best sellers are priced between $3.99 and $11.99.
Can new books break into Oncology & Cancer?
15% 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.