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Oncology (Internal Medicine, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Oncology (Internal Medicine, Kindle eBooks), updated Nov 2, 2026: median price $9.99, median 41 reviews, average rating 4.6 and a KDPTop opportunity score of 23/100 (highly competitive).
| Price range (middle 50%) | $4.99 – $14.99 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 12% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 5% of the parent category Internal Medicine (776), one of the easier corners under it.
- Prices spread wide: the middle half runs from $4.99 to $14.99, so budget editions and premium or boxed sets sell side by side.
Top 10 Oncology best sellers
-
The Emperor of All Maladies: A Biography of Cancer
- List rank#1
- Price$16.99
- Rating4.7
- Reviews9,938
-
The Complete Fenbendazole & Ivermectin Protocols: A Step-by-Step Repurposed Drug Dosing Reference, Supplement Stacking, and 60-Day Integrative Cancer Support System for Patients and Caregivers
by LENNOX HARTWELL
- List rank#2
- Price$9.99
- Rating4.2
- Reviews23
-
The Cancer Code: A Revolutionary New Understanding of a Medical Mystery (The Wellness Code Book 3)
- List rank#3
- Price$14.99
- Rating4.8
- Reviews2,401
-
Live Forever?: A Curious Scientist's Guide to Wellness, Ageing and Death
by Prof. John S. Tregoning
- List rank#4
- Price$10.99
- Rating4.6
- Reviews60
-
The Great Prostate Hoax: How Big Medicine Hijacked the PSA Test and Caused a Public Health Disaster
by Richard J. Ablin
- List rank#5
- Price$3.99
- Rating4.7
- Reviews439
-
Cancer Secrets: An Integrative Oncologist Reveals How to Fight Cancer Using the Best of Modern Medicine and Natural Therapies
by Jonathan Stegall
- List rank#6
- Price$9.99
- Rating4.5
- Reviews634
-
Fasting Cancer: How Fasting and Nutritechnology Are Creating a Revolution in Cancer Prevention and Treatment
by Valter Longo PhD
- List rank#7
- Price$16.99
- Rating4.4
- Reviews149
-
Cancerland: A Medical Memoir
by David Scadden
- List rank#8
- Price$2.99
- Rating4.2
- Reviews41
-
Chris Beat Cancer: A Comprehensive Plan for Healing Naturally
by Chris Wark
- List rank#9
- Price$9.99
- Rating4.8
- Reviews4,621
-
One Renegade Cell: How Cancer Begins (Science Masters Series)
by Robert A Weinberg
- List rank#10
- Price$1.99
- Rating4.5
- Reviews103
Subcategories
FAQ
Is Oncology a good niche for Amazon KDP?
Its KDPTop opportunity score is 23/100, which makes it highly competitive. The median best seller has 41 reviews and sells for $9.99.
How many reviews do you need to rank in Oncology?
The median best seller has 41 reviews, and 58% of them have fewer than 100.
What do Oncology best sellers cost?
The median price is $9.99; half of the best sellers are priced between $4.99 and $14.99.
Can new books break into Oncology?
12% 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.