KDP categories · Top KDP authors
Tropical (Ecosystems, Books): Amazon KDP category data
Amazon Books Best Sellers data for Tropical (Ecosystems, Books), updated Nov 2, 2026: median price $14.07, median 1 reviews, average rating 4.7 and a KDPTop opportunity score of 21/100 (highly competitive).
| Price range (middle 50%) | $9.99 – $18 |
|---|---|
| Average rating | 4.7 |
| New releases (90 days) | 5% |
| Books on the list | 88 |
| Store | Books |
What stands out
- Its median reviews are 0% of the parent category Ecosystems (518), one of the easier corners under it.
- Its review barrier is lower than in 99% of Books categories: the median best seller has only 1 reviews, so new books can chart with few.
- Only 5% of its best sellers are under 90 days old, fewer than in 75% of Books categories: established titles hold the list.
Top 10 Tropical best sellers
-
The Ultimate Ocean Facts for Kids, Teens, & Adults: Dive Into Underwater Wonders, Discover Mind-Blowing Creatures, Phenomena, Records, Inventions, and ... of the Deep! (Eleven Worlds to Explore)
by Ethereal Ray
- List rank#1
- Price$12.99
- Rating4.5
- Reviews148
-
3rd Grade Science Workbook: Grade 3 Life Science, Ecosystems, Earth, Living Things, Weather, Climate, Nature, The Environment, Forces and Motion, Fun Activities & Encouraging Words for Kids
by Veria Workbooks
- List rank#2
- Price$9.99
- Rating4.1
- Reviews26
-
Grass Left Standing: A Park Interpreter’s Road Map to Forest Bathing
by Maureen Stine
- List rank#3
- Price$16.95
- Rating4.8
- Reviews10
-
One River
by Wade Davis
- List rank#4
- Price$16.99
- Rating4.7
- Reviews606
-
The Magic Of The Rainforest: Stunning Wildlife Images And Fascinating Facts
by Mr Urs Hauenstein
- List rank#5
- Price$25
- Rating5.0
- Reviews1
-
World of Flowers: A Colouring Book and Floral Adventure
- List rank#6
- Price$19.24
- Rating4.8
- Reviews1,564
-
Terrarium & Vivarium Maintenance Log Book: Bioactive Ecosystem Tracker, Plant Care & Technical Maintenance Journal for Vivariums, Mossariums & Paludariums
by Arty Moon
- List rank#7
- Price$7.99
- Reviews-
-
Tropical Large Print Adult Coloring Book: Relaxing and Stress Free Coloring, Ocean, Flower and Beach Landscapes
by Creative Coloring
- List rank#8
- Price$7.99
- Rating5.0
- Reviews1
-
MANGROVES: The Vital Ecosystems of Coastal Regions
by KEVIN LARSON
- List rank#9
- Price$9.99
- Reviews-
-
Magical Jungle: 36 Postcards to Colour and Send (Colouring)
- List rank#10
- Price$17.28
- Rating4.8
- Reviews339
FAQ
Is Tropical a good niche for Amazon KDP?
Its KDPTop opportunity score is 21/100, which makes it highly competitive. The median best seller has 1 reviews and sells for $14.07.
How many reviews do you need to rank in Tropical?
The median best seller has 1 reviews, and 91% of them have fewer than 100.
What do Tropical best sellers cost?
The median price is $14.07; half of the best sellers are priced between $9.99 and $18.
Can new books break into Tropical?
5% 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.