KDP categories · Top KDP authors
Biology (Science Studies, Books): Amazon KDP category data
Amazon Books Best Sellers data for Biology (Science Studies, Books), updated Nov 1, 2026: median price $9.99, median 324 reviews, average rating 4.7 and a KDPTop opportunity score of 31/100 (highly competitive).
| Price range (middle 50%) | $7.99 – $12.11 |
|---|---|
| Average rating | 4.7 |
| New releases (90 days) | 4% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 14% of the parent category Science Studies (2,323), one of the easier corners under it.
- At $9.99 its median price is below 91% of Books categories, so it is a volume game.
- Only 4% of its best sellers are under 90 days old, fewer than in 82% of Books categories: established titles hold the list.
Top 10 Biology best sellers
-
100,000 Whys for Kids: A Full-Color Visual Encyclopedia of Big Questions, Clear Answers, Science, Space, Animals, Nature, History, Inventions, and How the World Works for Ages 6–13
- List rank#1
- Price$19.97
- Rating4.4
- Reviews904
-
100,000 Whys: The Ultimate Kids’ Encyclopedia by Bright & Able: Big Questions, Amazing Answers, and Fun Facts About Science, Animals, Space, and How Things Work
by Margaret Ellison
- List rank#2
- Price$33.24
- Rating4.6
- Reviews3
-
Will Holding in a Fart Make You Explode: Quirky Questions and Intriguing Answers for Teens
by Lauren Clearwell
- List rank#3
- Price$11.97
- Rating4.4
- Reviews125
-
See Inside Your Body: An Interactive Flap Book About Anatomy and Organs for Curious Children (Ages 6-9)
by Katie Daynes
- List rank#4
- Price$13.52
- Rating4.9
- Reviews5,615
-
Why Do Leaves Change Color?: A Clear and Engaging STEM Book About Autumn Trees (Let's-Read-and-Find-Out Science 2)
- List rank#5
- Price$8.38
- Rating4.7
- Reviews531
-
It's So Amazing!: A Book about Eggs, Sperm, Birth, Babies, and Families (The Family Library)
by Robie H. Harris
- List rank#6
- Price$13.97
- Rating4.7
- Reviews3,258
-
Knowledge Encyclopedia Human Body (Knowledge Encyclopedia For Children)
- List rank#7
- Price$17.36
- Rating4.7
- Reviews1,172
-
How Great Is Our God: 100 Indescribable Devotions About God and Science
by Louie Giglio
- List rank#8
- Price$9.99
- Rating4.9
- Reviews7,372
-
Spectrum Grade 6 Science Workbook, Middle School Books Covering Natural, Earth, Life Sciences, and More With Scientific Research Activities, Classroom or Homeschool Curriculum
by Spectrum
- List rank#9
- Price$11.49
- Rating4.6
- Reviews1,852
-
Because of an Acorn: (Nature Autumn Books for Children, Picture Books about Acorn Trees) (NRDC)
by Lola M Schaefer
- List rank#10
- Price$18.99
- Rating4.7
- Reviews740
Same niche in Kindle eBooks: Biology
FAQ
Is Biology a good niche for Amazon KDP?
Its KDPTop opportunity score is 31/100, which makes it highly competitive. The median best seller has 324 reviews and sells for $9.99.
How many reviews do you need to rank in Biology?
The median best seller has 324 reviews, and 21% of them have fewer than 100.
What do Biology best sellers cost?
The median price is $9.99; half of the best sellers are priced between $7.99 and $12.11.
Can new books break into Biology?
4% 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.