KDP categories · Top KDP authors
Ecology (Science & Technology, Books): Amazon KDP category data
Amazon Books Best Sellers data for Ecology (Science & Technology, Books), updated Nov 2, 2026: median price $15.16, median 22 reviews, average rating 4.6 and a KDPTop opportunity score of 23/100 (highly competitive).
| Price range (middle 50%) | $10.63 – $21.16 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 6% |
| Books on the list | 99 |
| Store | Books |
What stands out
- Its median reviews are 7% of the parent category Science & Technology (325), one of the easier corners under it.
- Its review barrier is lower than in 72% of Books categories: the median best seller has only 22 reviews, so new books can chart with few.
Top 10 Ecology best sellers
-
Spectrum Grade 7 Science Workbook, Middle School Books Covering Natural, Earth, Life Sciences, and More With Scientific Research Activities, Classroom or Homeschool Curriculum (Volume 59)
by Spectrum
- List rank#1
- Price$9.74
- Rating4.6
- Reviews2,687
-
Knowledge Encyclopedia - Our Planet Earth (Knowledge Encyclopedia For Children)
- List rank#2
- Price$16.91
- Rating4.8
- Reviews536
-
The Wondrous Workings of Planet Earth: Understanding Our World and Its Ecosystems
by Rachel Ignotofsky
- List rank#3
- Price$17.80
- Rating4.8
- Reviews986
-
The Omnivore's Dilemma: Young Readers Edition
- List rank#4
- Price$19.59
- Rating4.5
- Reviews948
-
Silver People: Voices from the Panama Canal
- List rank#5
- Price$8.79
- Rating4.5
- Reviews113
-
The Wondrous Workings of Science and Nature Coloring Book: 40 Line Drawings to Color
by Rachel Ignotofsky
- List rank#6
- Price$10.17
- Rating4.8
- Reviews391
-
Cursive Handwriting Workbook for Kids Ages 10-12, Grades 5-7: Cool Science Facts Cursive Letter Tracing Book for Beginners for Homeschool or Classroom Practice
- List rank#7
- Price$9.99
- Rating4.7
- Reviews37
-
The Forgotten Teachers: How Nature Wrote the Story of Life
by Brian Isett
- List rank#8
- Price$21.46
- Rating4.5
- Reviews20
-
Zoology: Advanced Curriculum for Middle & High School
by Amanda Scott
- List rank#9
- Price$18.99
- Rating5.0
- Reviews1
-
The Teen’s Guide to Becoming a Marine Biologist: How to Explore Marine Ecosystems, Protect Sea Life, and Build a Future in Ocean Science
by Logan Brant
- List rank#10
- Price$22.99
- Reviews-
FAQ
Is Ecology a good niche for Amazon KDP?
Its KDPTop opportunity score is 23/100, which makes it highly competitive. The median best seller has 22 reviews and sells for $15.16.
How many reviews do you need to rank in Ecology?
The median best seller has 22 reviews, and 84% of them have fewer than 100.
What do Ecology best sellers cost?
The median price is $15.16; half of the best sellers are priced between $10.63 and $21.16.
Can new books break into Ecology?
6% 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.