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Science Fiction & Fantasy (Genres & Styles, Books): Amazon KDP category data

Amazon Books Best Sellers data for Science Fiction & Fantasy (Genres & Styles, Books), updated Nov 2, 2026: median price $17.93, median 308 reviews, average rating 4.6 and a KDPTop opportunity score of 30/100 (highly competitive).

30Opportunity / 100
$17.93Median price
308Median reviews
Price range (middle 50%)$13.25 – $22.76
Average rating4.6
New releases (90 days)4%
Books on the list100
StoreBooks

What stands out

  • Its median reviews are 17% of the parent category Genres & Styles (1,801), one of the easier corners under it.
  • Only 4% of its best sellers are under 90 days old, fewer than in 82% of Books categories: established titles hold the list.

Top 10 Science Fiction & Fantasy best sellers

  1. A Hobbit, a Wardrobe, and a Great War: How J.R.R. Tolkien and C.S. Lewis Rediscovered Fait book cover by Joseph Loconte

    A Hobbit, a Wardrobe, and a Great War: How J.R.R. Tolkien and C.S. Lewis Rediscovered Faith, Friendship, and Heroism in the Cataclysm of 1914-1918

    by Joseph Loconte

    • List rank#1
    • Price$10.99
    • Rating4.6
    • Reviews1,640

    View on Amazon · Full data on KDPTop

  2. The War for Middle-earth: J.R.R. Tolkien and C.S. Lewis Confront the Gathering Storm, 1933 book cover by Joseph Loconte

    The War for Middle-earth: J.R.R. Tolkien and C.S. Lewis Confront the Gathering Storm, 1933–1945

    by Joseph Loconte

    • List rank#2
    • Price$14.49
    • Rating4.8
    • Reviews222

    View on Amazon · Full data on KDPTop

  3. The King Under the Mountain: In Search of J. R. R. Tolkien book cover by D. J. Taylor

    The King Under the Mountain: In Search of J. R. R. Tolkien

    by D. J. Taylor

    • List rank#3
    • Price$29.82
    • Rating3.6
    • Reviews4

    View on Amazon · Full data on KDPTop

  4. Wonderbook: The Illustrated Guide to Creating Imaginative Fiction book cover by Jeff VanderMeer

    Wonderbook: The Illustrated Guide to Creating Imaginative Fiction

    by Jeff VanderMeer

    • List rank#4
    • Price$9.99
    • Rating4.7
    • Reviews929

    View on Amazon · Full data on KDPTop

  5. The Letters of J. R. R. Tolkien: Revised and Expanded edition book cover by J. R. R. Tolkien

    The Letters of J. R. R. Tolkien: Revised and Expanded edition

    by J. R. R. Tolkien

    • List rank#5
    • Price$34.79
    • Rating4.9
    • Reviews534

    View on Amazon · Full data on KDPTop

  6. Atlas Of Middle-Earth: The Essential Guide to the Geography of the World of The Lord of th book cover by Karen Wynn Fonstad

    Atlas Of Middle-Earth: The Essential Guide to the Geography of the World of The Lord of the Rings

    by Karen Wynn Fonstad

    • List rank#6
    • Price$12.93
    • Rating4.8
    • Reviews3,027

    View on Amazon · Full data on KDPTop

  7. World of Tolkien Seven-Book Boxed Set - Tolkien Reference Books for All Ages, Illustrated  book cover by David Day

    World of Tolkien Seven-Book Boxed Set - Tolkien Reference Books for All Ages, Illustrated Lord of the Rings Guides, Boxed Set

    by David Day

    • List rank#7
    • Price$42.12
    • Rating4.7
    • Reviews366

    View on Amazon · Full data on KDPTop

  8. The Baron Trump Collection: Complete 3-Book Collection - Ingersoll Lockwood's Time Travel  book cover by Lockwood Ingersoll

    The Baron Trump Collection: Complete 3-Book Collection - Ingersoll Lockwood's Time Travel Novels: Travels and Adventures of Little Baron Trump with ... Journey | The Last President (1896)

    by Lockwood Ingersoll

    • List rank#8
    • Price$15.97
    • Rating4.3
    • Reviews239

    View on Amazon · Full data on KDPTop

  9. On Writing and Worldbuilding: Volume I book cover by Timothy Hickson

    On Writing and Worldbuilding: Volume I

    by Timothy Hickson

    • List rank#9
    • Price$13.99
    • Rating4.8
    • Reviews2,497

    View on Amazon · Full data on KDPTop

  10. The Allure of the Multiverse: Extra Dimensions, Other Worlds, and Parallel Universes book cover by Paul Halpern

    The Allure of the Multiverse: Extra Dimensions, Other Worlds, and Parallel Universes

    by Paul Halpern

    • List rank#10
    • Price$1.99
    • Rating4.3
    • Reviews109

    View on Amazon · Full data on KDPTop

FAQ

Is Science Fiction & Fantasy a good niche for Amazon KDP?

Its KDPTop opportunity score is 30/100, which makes it highly competitive. The median best seller has 308 reviews and sells for $17.93.

How many reviews do you need to rank in Science Fiction & Fantasy?

The median best seller has 308 reviews, and 18% of them have fewer than 100.

What do Science Fiction & Fantasy best sellers cost?

The median price is $17.93; half of the best sellers are priced between $13.25 and $22.76.

Can new books break into Science Fiction & Fantasy?

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.