KDP categories · Top KDP authors
Water (Nature, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Water (Nature, Kindle eBooks), updated Nov 2, 2026: median price $5.99, median 104 reviews, average rating 4.7 and a KDPTop opportunity score of 19/100 (highly competitive).
| Price range (middle 50%) | $3.99 – $8.99 |
|---|---|
| Average rating | 4.7 |
| New releases (90 days) | 10% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 14% of the parent category Nature (749), one of the easier corners under it.
- Prices spread wide: the middle half runs from $3.99 to $8.99, so budget editions and premium or boxed sets sell side by side.
Top 10 Water best sellers
-
Sharks (National Geographic Kids Readers, Level 2)
- List rank#1
- Price$2.99
- Rating4.8
- Reviews2,828
-
Weird Sea Creatures (National Geographic Kids Readers, Level 2)
by Laura Marsh
- List rank#2
- Price$4.99
- Rating4.8
- Reviews1,941
-
Can You Survive the Titanic? (You Choose: Survival)
by Allison Lassieur
- List rank#3
- Price$6.95
- Rating4.4
- Reviews339
-
Manatees (National Geographic Kids Readers, Level 2)
by Laura Marsh
- List rank#4
- Price$4.99
- Rating4.8
- Reviews505
-
At the Beach (National Geographic Kids Readers, Pre-Reader)
by Shira Evans
- List rank#5
- Price$3.99
- Rating4.8
- Reviews497
-
Coral Reefs (National Geographic Kids Readers, Level 2)
by Kristin Baird Rattini
- List rank#6
- Price$2.99
- Rating4.9
- Reviews416
-
Spooky Lakes: 25 Strange and Mysterious Lakes that Dot Our Planet (Haunted Hydrology)
- List rank#7
- Price$11.99
- Rating4.9
- Reviews854
-
Ocean Animals for Kids: A Junior Scientist's Guide to Whales, Sharks, and Other Marine Life
by Bethanie Hestermann
- List rank#8
- Price$3.99
- Rating4.8
- Reviews1,142
-
Yikes!: Icky, Sticky, Gross Stuff Underwater (Icky, Sticky, Gross-Out Books)
by Pam Rosenberg
- List rank#9
- Price$15.64
- Reviews-
-
Spooky Rivers: 25 Strange and Mysterious Rivers that Snake Across Our Planet (Haunted Hydrology)
- List rank#10
- Price$21.40
- Rating4.9
- Reviews70
Same niche in Books: Water
FAQ
Is Water a good niche for Amazon KDP?
Its KDPTop opportunity score is 19/100, which makes it highly competitive. The median best seller has 104 reviews and sells for $5.99.
How many reviews do you need to rank in Water?
The median best seller has 104 reviews, and 49% of them have fewer than 100.
What do Water best sellers cost?
The median price is $5.99; half of the best sellers are priced between $3.99 and $8.99.
Can new books break into Water?
10% 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.