KDP categories · Top KDP authors
Fish & Marine Life: Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Fish & Marine Life, updated Nov 3, 2026: median price $4.99, median 260 reviews, average rating 4.6 and a KDPTop opportunity score of 26/100 (highly competitive).
| Price range (middle 50%) | $2.99 – $7.60 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 4% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 15% of the parent category Animals (1,714), one of the easier corners under it.
- At $4.99 its median price is below 91% of Kindle eBooks categories, so it is a volume game.
- Only 4% of its best sellers are under 90 days old, fewer than in 82% of Kindle eBooks categories: established titles hold the list.
Top 10 Fish & Marine Life best sellers
-
SpongeBob Goes to the Doctor (SpongeBob SquarePants)
- List rank#1
- Price$3.99
- Rating4.2
- Reviews3,276
-
Clark the Shark: Too Many Treats: A Funny Self-Control Story About Temptation for Children (Ages 4–8) (I Can Read Level 1)
by Bruce Hale
- List rank#2
- Price$4.99
- Rating4.7
- Reviews4,841
-
Behold, No Cavities! A Visit to the Dentist (SpongeBob SquarePants)
- List rank#3
- Price-
- Rating4.2
- Reviews143
-
Sharks (National Geographic Kids Readers, Level 2)
- List rank#4
- Price$2.99
- Rating4.8
- Reviews2,828
-
Chompy the Shark: Short Stories and Jokes for Kids Ages 4-8 (Early Bird Reader Book 3)
- List rank#5
- Price$0.99
- Rating4.0
- Reviews1,111
-
Adventures With An Axolotl! Inspiring Short Stories For Kids 6-10: 15 Fun & Imaginative Short Stories Teaching Key Life Lessons While Encouraging Fun, ... (Kids adventure and education books Book 1)
by Maxwell Vox
- List rank#6
- Price$0.99
- Rating4.2
- Reviews58
-
Sharks (Little Scientist)
by Megan Cooley Peterson
- List rank#7
- Price$6.95
- Rating4.0
- Reviews11
-
5 Steps to Drawing Sea Creatures
by Amanda StJohn
- List rank#8
- Price$17.07
- Rating3.0
- Reviews1
-
Weird Sea Creatures (National Geographic Kids Readers, Level 2)
by Laura Marsh
- List rank#9
- Price$4.99
- Rating4.8
- Reviews1,941
-
The Pout-Pout Fish (A Pout-Pout Fish Adventure Book 1)
- List rank#10
- Price-
- Rating4.8
- Reviews28,040
Subcategories
- Fish18
- Marine Life18
Same niche in Books: Marine Life
FAQ
Is Fish & Marine Life a good niche for Amazon KDP?
Its KDPTop opportunity score is 26/100, which makes it highly competitive. The median best seller has 260 reviews and sells for $4.99.
How many reviews do you need to rank in Fish & Marine Life?
The median best seller has 260 reviews, and 34% of them have fewer than 100.
What do Fish & Marine Life best sellers cost?
The median price is $4.99; half of the best sellers are priced between $2.99 and $7.60.
Can new books break into Fish & Marine Life?
4% 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.