KDP categories · Top KDP authors
Underwater (Nature & Wildlife, Books): Amazon KDP category data
Amazon Books Best Sellers data for Underwater (Nature & Wildlife, Books), updated Nov 2, 2026: median price $23.85, median 21 reviews, average rating 4.6 and a KDPTop opportunity score of 23/100 (highly competitive).
| Price range (middle 50%) | $14.04 – $36.79 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 8% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 12% of the parent category Nature & Wildlife (180), one of the easier corners under it.
- At $23.85 its median price beats 82% of Books categories, leaving more margin per copy.
- Its review barrier is lower than in 72% of Books categories: the median best seller has only 21 reviews, so new books can chart with few.
Top 10 Underwater best sellers
-
Clark Little: The Art of Waves
by Clark Little
- List rank#1
- Price$22
- Rating4.9
- Reviews723
-
Coastlines: At the Water's Edge
by Emily Nathan
- List rank#2
- Price$29.81
- Rating4.7
- Reviews180
-
Secrets of the Octopus
- List rank#3
- Price$14.24
- Rating4.7
- Reviews459
-
The Life & Love of the Sea: Underwater photography capturing ocean creatures, coral gardens, and the fragile beauty beneath waves.
by Lewis Blackwell
- List rank#4
- Price$34.90
- Rating4.8
- Reviews665
-
Secrets of the Whales
by Brian Skerry
- List rank#5
- Price$22.53
- Rating4.8
- Reviews511
-
Reef Creature Identification Tropical Pacific
by Paul Humann
- List rank#6
- Price$34.14
- Rating4.8
- Reviews225
-
Shapeshifters: The Wondrous World of Jellyfish
by Lisa-ann Gershwin
- List rank#7
- Price$15.99
- Rating4.7
- Reviews122
-
THE SEA: A visual journey into this wonder (THE COFFEE TABLE BOOKS)
by KIMASAGU STUDIO
- List rank#8
- Price$49.79
- Rating4.4
- Reviews4
-
The Shark Handbook: Third Edition: The Essential Guide for Understanding the Sharks of the World
by Greg Skomal
- List rank#9
- Price$11.32
- Rating4.8
- Reviews256
-
Shark: Portraits
by Mike Coots
- List rank#10
- Price$41.10
- Rating4.6
- Reviews92
FAQ
Is Underwater a good niche for Amazon KDP?
Its KDPTop opportunity score is 23/100, which makes it highly competitive. The median best seller has 21 reviews and sells for $23.85.
How many reviews do you need to rank in Underwater?
The median best seller has 21 reviews, and 80% of them have fewer than 100.
What do Underwater best sellers cost?
The median price is $23.85; half of the best sellers are priced between $14.04 and $36.79.
Can new books break into Underwater?
8% 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.