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Oceans & Seas (Nature & Ecology, Kindle eBooks): Amazon KDP category data

Amazon Kindle eBooks Best Sellers data for Oceans & Seas (Nature & Ecology, Kindle eBooks), updated Nov 3, 2026: median price $9.99, median 224 reviews, average rating 4.5 and a KDPTop opportunity score of 21/100 (highly competitive).

21Opportunity / 100
$9.99Median price
224Median reviews
Price range (middle 50%)$6.74 – $13.04
Average rating4.5
New releases (90 days)4%
Books on the list100
StoreKindle eBooks

What stands out

  • Its median reviews are 22% of the parent category Nature & Ecology (1,034), one of the easier corners under it.
  • 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 Oceans & Seas best sellers

  1. In the Heart of the Sea: The Tragedy of the Whaleship Essex (National Book Award Winner) book cover by Nathaniel Philbrick

    In the Heart of the Sea: The Tragedy of the Whaleship Essex (National Book Award Winner)

    by Nathaniel Philbrick

    • List rank#1
    • Price$14.99
    • Rating4.5
    • Reviews8,071

    View on Amazon · Full data on KDPTop

  2. Other Minds: The Octopus, the Sea, and the Deep Origins of Consciousness book cover by Peter Godfrey-Smith

    Other Minds: The Octopus, the Sea, and the Deep Origins of Consciousness

    by Peter Godfrey-Smith

    • List rank#2
    • Price$12.99
    • Rating4.4
    • Reviews5,856

    View on Amazon · Full data on KDPTop

  3. The Soul of an Octopus: A Surprising Exploration into the Wonder of Consciousness book cover by Sy Montgomery

    The Soul of an Octopus: A Surprising Exploration into the Wonder of Consciousness

    by Sy Montgomery

    • List rank#3
    • Price$13.99
    • Rating4.6
    • Reviews11,212

    View on Amazon · Full data on KDPTop

  4. The Three Ages of Water: Prehistoric Past, Imperiled Present, and a Hope for the Future book cover by Peter Gleick

    The Three Ages of Water: Prehistoric Past, Imperiled Present, and a Hope for the Future

    by Peter Gleick

    • List rank#4
    • Price$1.99
    • Rating4.6
    • Reviews58

    View on Amazon · Full data on KDPTop

  5. The Perfect Storm: A True Story of Men Against the Sea book cover by Sebastian Junger

    The Perfect Storm: A True Story of Men Against the Sea

    by Sebastian Junger

    • List rank#5
    • Price$9.10
    • Rating4.6
    • Reviews3,383

    View on Amazon · Full data on KDPTop

  6. 438 Days: An Extraordinary True Story of Survival at Sea book cover by Jonathan Franklin

    438 Days: An Extraordinary True Story of Survival at Sea

    by Jonathan Franklin

    • List rank#6
    • Price$13.99
    • Rating4.6
    • Reviews9,257

    View on Amazon · Full data on KDPTop

  7. The Place of Tides: A Transformative Nature Memoir of Isolation, Forgiveness, and Self-Dis book cover by James Rebanks

    The Place of Tides: A Transformative Nature Memoir of Isolation, Forgiveness, and Self-Discovery on a Remote Norwegian Island

    by James Rebanks

    • List rank#7
    • Price$19.99
    • Rating4.6
    • Reviews1,329

    View on Amazon · Full data on KDPTop

  8. Into the Planet: My Life as a Cave Diver book cover by Jill Heinerth

    Into the Planet: My Life as a Cave Diver

    by Jill Heinerth

    • List rank#8
    • Price$13.67
    • Rating4.6
    • Reviews1,336

    View on Amazon · Full data on KDPTop

  9. Monarchs of the Sea: The Extraordinary 500-Million-Year History of Cephalopods book cover by Danna Staaf

    Monarchs of the Sea: The Extraordinary 500-Million-Year History of Cephalopods

    by Danna Staaf

    • List rank#9
    • Price$3.99
    • Rating4.7
    • Reviews281

    View on Amazon · Full data on KDPTop

  10. Close to Shore: The Terrifying Shark Attacks of 1916 book cover by Michael Capuzzo

    Close to Shore: The Terrifying Shark Attacks of 1916

    by Michael Capuzzo

    • List rank#10
    • Price$8.99
    • Rating4.3
    • Reviews1,458

    View on Amazon · Full data on KDPTop

Subcategories

Same niche in Books: Oceans & Seas

FAQ

Is Oceans & Seas a good niche for Amazon KDP?

Its KDPTop opportunity score is 21/100, which makes it highly competitive. The median best seller has 224 reviews and sells for $9.99.

How many reviews do you need to rank in Oceans & Seas?

The median best seller has 224 reviews, and 34% of them have fewer than 100.

What do Oceans & Seas best sellers cost?

The median price is $9.99; half of the best sellers are priced between $6.74 and $13.04.

Can new books break into Oceans & Seas?

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.