KDP categories · Top KDP authors
Oceans & Seas (Nature & Ecology, Books): Amazon KDP category data
Amazon Books Best Sellers data for Oceans & Seas (Nature & Ecology, Books), updated Nov 2, 2026: median price $14.31, median 472 reviews, average rating 4.6 and a KDPTop opportunity score of 26/100 (highly competitive).
| Price range (middle 50%) | $10.48 – $20.10 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 5% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 28% of the parent category Nature & Ecology (1,709), one of the easier corners under it.
- Its review barrier is higher than in 76% of Books categories: the median best seller has 472 reviews, so new books need time to build up.
- Only 5% of its best sellers are under 90 days old, fewer than in 75% of Books categories: established titles hold the list.
Top 10 Oceans & Seas best sellers
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In the Heart of the Sea: The Tragedy of the Whaleship Essex
- List rank#2
- Price$12.14
- Rating4.5
- Reviews8,071
-
The Wreck of the Mentor: A True Story of Death, Despair, and Deliverance in the Age of Sail
- List rank#3
- Price$22.78
- Rating4.0
- Reviews555
-
The Soul of an Octopus: A Surprising Exploration into the Wonder of Consciousness
- List rank#4
- Price$10.48
- Rating4.6
- Reviews11,212
-
438 Days: An Extraordinary True Story of Survival at Sea
by Jonathan Franklin
- List rank#5
- Price$10.10
- Rating4.6
- Reviews9,257
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The Truth About Animals: Stoned Sloths, Lovelorn Hippos, and Other Tales from the Wild Side of Wildlife
by Lucy Cooke
- List rank#6
- Price$10.48
- Rating4.5
- Reviews578
-
Ocean Anatomy: The Curious Parts & Pieces of the World under the Sea
- List rank#7
- Price$13.32
- Rating4.9
- Reviews3,025
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The Perfect Storm: A True Story of Men Against the Sea
- List rank#8
- Price$16.69
- Rating4.6
- Reviews3,383
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Other Minds: The Octopus, the Sea, and the Deep Origins of Consciousness
by Peter Godfrey-Smith
- List rank#9
- Price$11.49
- Rating4.4
- Reviews5,856
-
Scientific American September 2026
- List rank#10
- Price$6.99
- Rating4.8
- Reviews13
Subcategories
Same niche in Kindle eBooks: Oceans & Seas
FAQ
Is Oceans & Seas a good niche for Amazon KDP?
Its KDPTop opportunity score is 26/100, which makes it highly competitive. The median best seller has 472 reviews and sells for $14.31.
How many reviews do you need to rank in Oceans & Seas?
The median best seller has 472 reviews, and 17% of them have fewer than 100.
What do Oceans & Seas best sellers cost?
The median price is $14.31; half of the best sellers are priced between $10.48 and $20.10.
Can new books break into Oceans & Seas?
5% 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.