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Encyclopedias (Reference, Kindle eBooks): Amazon KDP category data

Amazon Kindle eBooks Best Sellers data for Encyclopedias (Reference, Kindle eBooks), updated Nov 3, 2026: median price $9.99, median 54 reviews, average rating 4.5 and a KDPTop opportunity score of 30/100 (highly competitive).

30Opportunity / 100
$9.99Median price
54Median reviews
Price range (middle 50%)$3.71 – $12.59
Average rating4.5
New releases (90 days)14%
Books on the list100
StoreKindle eBooks

What stands out

  • Its median reviews are 5% of the parent category Reference (1,036), one of the easier corners under it.
  • Prices spread wide: the middle half runs from $3.71 to $12.59, so budget editions and premium or boxed sets sell side by side.

Top 10 Encyclopedias best sellers

  1. The Godfather: 50th Anniversary Edition book cover by Mario Puzo

    The Godfather: 50th Anniversary Edition

    by Mario Puzo

    • List rank#1
    • Price$6.99
    • Rating4.8
    • Reviews27,867

    View on Amazon · Full data on KDPTop

  2. Classical Mythology A to Z: An Encyclopedia of Gods & Goddesses, Heroes & Heroines, Nymphs book cover by Annette Giesecke

    Classical Mythology A to Z: An Encyclopedia of Gods & Goddesses, Heroes & Heroines, Nymphs, Spirits, Monsters, and Places

    by Annette Giesecke

    • List rank#2
    • Price$14.99
    • Rating4.8
    • Reviews1,576

    View on Amazon · Full data on KDPTop

  3. The Structure of Scientific Revolutions: 50th Anniversary Edition book cover by Thomas S. Kuhn

    The Structure of Scientific Revolutions: 50th Anniversary Edition

    by Thomas S. Kuhn

    • List rank#3
    • Price$10.27
    • Rating4.5
    • Reviews2,055

    View on Amazon · Full data on KDPTop

  4. Kindred book cover by Octavia Butler

    Kindred

    by Octavia Butler

    • List rank#4
    • Price$9.99
    • Rating4.6
    • Reviews26,195

    View on Amazon · Full data on KDPTop

  5. Encyclopedia of Spirits: The Ultimate Guide to the Magic of Fairies, Genies, Demons, Ghost book cover by Judika Illes

    Encyclopedia of Spirits: The Ultimate Guide to the Magic of Fairies, Genies, Demons, Ghosts, Gods & Goddesses (Witchcraft & Spells Book 1)

    by Judika Illes

    • List rank#5
    • Price$23.99
    • Rating4.8
    • Reviews3,832

    View on Amazon · Full data on KDPTop

  6. The Complete Peanuts Family Album: The Ultimate Guide to Charles M. Schulz's Classic Chara book cover by Andrew Farago

    The Complete Peanuts Family Album: The Ultimate Guide to Charles M. Schulz's Classic Characters

    by Andrew Farago

    • List rank#6
    • Price$11.99
    • Rating4.7
    • Reviews704

    View on Amazon · Full data on KDPTop

  7. The Encyclopedia of Soups and Stews: Over 300 Hearty Recipes for Every Season (Encyclopedi book cover by The Coastal Kitchen

    The Encyclopedia of Soups and Stews: Over 300 Hearty Recipes for Every Season (Encyclopedia Cookbooks)

    by The Coastal Kitchen

    • List rank#7
    • Price$3.99
    • Rating4.4
    • Reviews30

    View on Amazon · Full data on KDPTop

  8. Knowledge Encyclopedia - Our Planet Earth book cover by Wonder House Books

    Knowledge Encyclopedia - Our Planet Earth

    by Wonder House Books

    • List rank#8
    • Price$1.99
    • Rating4.8
    • Reviews536

    View on Amazon · Full data on KDPTop

  9. 100,000 Whys - Encyclopedia for Curious Adults: Discover Fascinating Science Facts, Histor book cover by Oliver G. Wise

    100,000 Whys - Encyclopedia for Curious Adults: Discover Fascinating Science Facts, History Trivia, Human Behavior, Nature Mysteries, and Surprising Answers to Everyday Questions

    by Oliver G. Wise

    • List rank#9
    • Price$3.99
    • Rating4.5
    • Reviews21

    View on Amazon · Full data on KDPTop

  10. The Ultimate 100,000 Whys Book for Adults Encyclopedia: Look Beyond “Why”—Explore Clear An book cover by Trevor Corvellan

    The Ultimate 100,000 Whys Book for Adults Encyclopedia: Look Beyond “Why”—Explore Clear Answers to Everyday Questions Across Mind, Life, Science, and the World Around You

    by Trevor Corvellan

    • List rank#10
    • Price$2.99
    • Rating4.2
    • Reviews60

    View on Amazon · Full data on KDPTop

Same niche in Books: Encyclopedias & Subject Guides

FAQ

Is Encyclopedias a good niche for Amazon KDP?

Its KDPTop opportunity score is 30/100, which makes it highly competitive. The median best seller has 54 reviews and sells for $9.99.

How many reviews do you need to rank in Encyclopedias?

The median best seller has 54 reviews, and 57% of them have fewer than 100.

What do Encyclopedias best sellers cost?

The median price is $9.99; half of the best sellers are priced between $3.71 and $12.59.

Can new books break into Encyclopedias?

14% 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.