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Fish (Fish & Marine Life, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Fish (Fish & Marine Life, Kindle eBooks), updated Nov 2, 2026: median price $4.99, median 126 reviews, average rating 4.6 and a KDPTop opportunity score of 18/100 (highly competitive).
| Price range (middle 50%) | $3.24 – $7.99 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 4% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- 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.
- Its median reviews are 49% of the parent category Fish & Marine Life (260), one of the easier corners under it.
Top 10 Fish best sellers
-
Sharks (National Geographic Kids Readers, Level 2)
- List rank#1
- 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#2
- Price$0.99
- Rating4.0
- Reviews1,111
-
Sharks (Little Scientist)
by Megan Cooley Peterson
- List rank#3
- Price$6.95
- Rating4.0
- Reviews11
-
The Pout-Pout Fish (A Pout-Pout Fish Adventure Book 1)
- List rank#4
- Price-
- Rating4.8
- Reviews28,040
-
What If You Could Sniff Like a Shark?: Explore the Superpowers of Ocean Animals (What If You Had... ? Book 1)
- List rank#5
- Price$3.99
- Rating4.8
- Reviews337
-
Princess Emerald and the Shy Baby Sea Dragon: A Magical Mermaid Underwater Story About Courage and Confidence (The Princess Emerald Mermaid Series Book 3)
- List rank#6
- Price$0.99
- Rating4.6
- Reviews24
-
The Penguin who saved a Fish: An Animal Rescue book for KIDS (Pip and Noah 3)
by Cove Books
- List rank#7
- Price$0
- Rating4.6
- Reviews464
-
Chompy the Shark: Fix-It Friends to the Rescue!: 8 Silly Stories That Teach Confidence Sharing and Caring (Early Bird Reader Book 4)
- List rank#8
- Price$2.99
- Rating3.9
- Reviews10
-
Vivi Loves Science: Sink or Float (I Can Read Level 3)
by Kimberly Derting
- List rank#9
- Price$4.55
- Rating4.7
- Reviews259
-
Growing Home
by Beth Ferry
- List rank#10
- Price$10.99
- Rating4.6
- Reviews202
FAQ
Is Fish a good niche for Amazon KDP?
Its KDPTop opportunity score is 18/100, which makes it highly competitive. The median best seller has 126 reviews and sells for $4.99.
How many reviews do you need to rank in Fish?
The median best seller has 126 reviews, and 46% of them have fewer than 100.
What do Fish best sellers cost?
The median price is $4.99; half of the best sellers are priced between $3.24 and $7.99.
Can new books break into Fish?
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.