KDP categories · Top KDP authors
Breast Cancer (Cancer, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Breast Cancer (Cancer, Kindle eBooks), updated Nov 2, 2026: median price $7.99, median 56 reviews, average rating 4.7 and a KDPTop opportunity score of 24/100 (highly competitive).
| Price range (middle 50%) | $3.99 – $9.99 |
|---|---|
| Average rating | 4.7 |
| New releases (90 days) | 16% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- 16% 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.
- Prices spread wide: the middle half runs from $3.99 to $9.99, so budget editions and premium or boxed sets sell side by side.
Top 10 Breast Cancer best sellers
-
The Emperor of All Maladies: A Biography of Cancer
- List rank#1
- Price$16.99
- Rating4.7
- Reviews9,938
-
Beyond the Pink: Navigating Life, Health, and Breast Cancer
by Dr. Eleonora Teplinsky M.D.
- List rank#2
- Price$15.99
- Rating4.9
- Reviews16
-
The Dog Lived (and So Will I)
by Teresa Rhyne
- List rank#3
- Price$2.99
- Rating4.5
- Reviews1,766
-
The Spanish Smoking Gun: How Spain Accidentally Proved What's Killing the Rest of Us (James Allen Beckett Investigates)
by James Allen Beckett
- List rank#4
- Price$12.99
- Rating5.0
- Reviews6
-
The Breast Advice: All You Need to Know About Breast Health, Screening, and Treatment
by Dr. Elisa Port
- List rank#5
- Price$14.99
- Rating4.4
- Reviews32
-
The Smart Woman's Guide to Breast Cancer
by Jenn Simmons
- List rank#6
- Price$9.99
- Rating4.7
- Reviews263
-
The Integrative Breast Cancer Companion: Combining Conventional Treatment with Integrative Care
by Mark Hancock
- List rank#7
- Price$9.99
- Reviews-
-
What's With the Socks?: Still Standing, Slightly Scarred, and Laughing Anyway
by Cynthia Wrisley
- List rank#8
- Price$5.99
- Rating5.0
- Reviews2
-
Hormone Secrets: Feel Great and Age Well Using the Bio-identicals
by Robert Yoho
- List rank#9
- Price$3.99
- Rating4.6
- Reviews188
-
Refuge: An Unnatural History of Family and Place
by Terry Tempest Williams
- List rank#10
- Price$9.99
- Rating4.4
- Reviews456
Same niche in Books: Brain Cancer
FAQ
Is Breast Cancer a good niche for Amazon KDP?
Its KDPTop opportunity score is 24/100, which makes it highly competitive. The median best seller has 56 reviews and sells for $7.99.
How many reviews do you need to rank in Breast Cancer?
The median best seller has 56 reviews, and 56% of them have fewer than 100.
What do Breast Cancer best sellers cost?
The median price is $7.99; half of the best sellers are priced between $3.99 and $9.99.
Can new books break into Breast Cancer?
16% 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.