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Biology (Science, Nature & How It Works, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Biology (Science, Nature & How It Works, Kindle eBooks), updated Nov 2, 2026: median price $5.99, median 46 reviews, average rating 4.7 and a KDPTop opportunity score of 22/100 (highly competitive).
| Price range (middle 50%) | $3.19 – $8.99 |
|---|---|
| Average rating | 4.7 |
| New releases (90 days) | 8% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 45% of the parent category Science, Nature & How It Works (103), one of the easier corners under it.
- Prices spread wide: the middle half runs from $3.19 to $8.99, so budget editions and premium or boxed sets sell side by side.
Top 10 Biology best sellers
-
Skeletons ARE NOT Spooky!
by Duds
- List rank#1
- Price$2.99
- Rating4.5
- Reviews930
-
Why Feet Smell and Other Gross Facts about Your Body (Gross Me Out)
by Jody Sullivan Rake
- List rank#2
- Price$10.99
- Rating4.3
- Reviews9
-
A Day inside the Human Body: Fantasy Science Field Trips
by Claire Throp
- List rank#3
- Price$8.99
- Reviews-
-
My First Book of Planets: All About the Solar System for Kids
by Bruce Betts
- List rank#4
- Price$8.99
- Rating4.8
- Reviews17,912
-
Awesome Physics Experiments for Kids: 40 Fun Science Projects & Why They Work!
by Erica L. Colón
- List rank#5
- Price$9.02
- Rating4.6
- Reviews1,906
-
Learning How to Learn: How to Succeed in School Without Spending All Your Time Studying; A Guide for Kids and Teens
by Barbara Oakley PhD
- List rank#6
- Price$10.99
- Rating4.7
- Reviews1,606
-
Everybody Poops! (Everybody Potties!)
by Justine Avery
- List rank#7
- Price$4.99
- Rating4.5
- Reviews1,377
-
Tyrannosaurus rex (First Graphics: Dinosaurs)
by Sheila Hammer
- List rank#8
- Price$10.99
- Rating2.6
- Reviews3
-
The Vagus Nerve for Kids: A Funny Nervous System Book for Kids About Anxiety, Breathing Exercises, Big Feelings, and the Vagus Nerve (Kids Breathe and Believe)
by Rakmi Lemala
- List rank#9
- Price$2.99
- Rating4.1
- Reviews11
-
The Fascinating Ocean Book for Kids: 500 Incredible Facts!
by Bethanie Hestermann
- List rank#10
- Price$7.36
- Rating4.8
- Reviews2,312
Same niche in Books: Biology
FAQ
Is Biology a good niche for Amazon KDP?
Its KDPTop opportunity score is 22/100, which makes it highly competitive. The median best seller has 46 reviews and sells for $5.99.
How many reviews do you need to rank in Biology?
The median best seller has 46 reviews, and 59% of them have fewer than 100.
What do Biology best sellers cost?
The median price is $5.99; half of the best sellers are priced between $3.19 and $8.99.
Can new books break into Biology?
8% 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.