KDP categories · Top KDP authors
Water (Nature, Books): Amazon KDP category data
Amazon Books Best Sellers data for Water (Nature, Books), updated Nov 2, 2026: median price $9.99, median 298 reviews, average rating 4.8 and a KDPTop opportunity score of 23/100 (highly competitive).
| Price range (middle 50%) | $7.31 – $12.60 |
|---|---|
| Average rating | 4.8 |
| New releases (90 days) | 3% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 16% of the parent category Nature (1,887), one of the easier corners under it.
- Only 3% of its best sellers are under 90 days old, fewer than in 88% of Books categories: established titles hold the list.
- At $9.99 its median price is below 91% of Books categories, so it is a volume game.
Top 10 Water best sellers
-
Ocean Scene: Coloring Book for Adults and Kids, Bold and Easy Designs for Relaxation with Sea Life (Bold & Easy Coloring)
by Coco Wyo
- List rank#1
- Price$9.99
- Rating4.8
- Reviews2,507
-
Spooky Rivers: 25 Strange and Mysterious Rivers that Snake Across Our Planet (Haunted Hydrology)
- List rank#2
- Price$22.53
- Rating4.9
- Reviews70
-
-
Sharks (National Geographic Kids Readers, Level 2)
- List rank#4
- Price$2.99
- Rating4.8
- Reviews2,828
-
Spooky Lakes: 25 Strange and Mysterious Lakes that Dot Our Planet (Haunted Hydrology)
- List rank#5
- Price$23.15
- Rating4.9
- Reviews854
-
An Anthology of Our Extraordinary Earth: Discover the Awe-Inspiring Wonders of Planet Earth (DK Children's Anthologies)
by Cally Oldershaw
- List rank#6
- Price$10.31
- Rating4.9
- Reviews774
-
An Anthology of Aquatic Life: Discover the Secret Lives Under the Sea (DK Children's Anthologies)
by Sam Hume
- List rank#7
- Price$16.65
- Rating4.8
- Reviews1,423
-
-
National Geographic Little Kids First Big Book of the Ocean
- List rank#9
- Price$9.74
- Rating4.9
- Reviews4,500
-
Wish for a Fish: All About Sea Creatures (The Cat in the Hat's Learning Library)
by Bonnie Worth
- List rank#10
- Price$6.62
- Rating4.9
- Reviews1,005
Same niche in Kindle eBooks: Water
FAQ
Is Water a good niche for Amazon KDP?
Its KDPTop opportunity score is 23/100, which makes it highly competitive. The median best seller has 298 reviews and sells for $9.99.
How many reviews do you need to rank in Water?
The median best seller has 298 reviews, and 24% of them have fewer than 100.
What do Water best sellers cost?
The median price is $9.99; half of the best sellers are priced between $7.31 and $12.60.
Can new books break into Water?
3% 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.