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Fiction (Math, Books): Amazon KDP category data

Amazon Books Best Sellers data for Fiction (Math, Books), updated Nov 2, 2026: median price $8.08, median 322 reviews, average rating 4.7 and a KDPTop opportunity score of 20/100 (highly competitive).

20Opportunity / 100
$8.08Median price
322Median reviews
Price range (middle 50%)$6.79 – $10.99
Average rating4.7
New releases (90 days)5%
Books on the list100
StoreBooks

What stands out

  • Its median reviews are 13% of the parent category Math (2,445), one of the easier corners under it.
  • At $8.08 its median price is below 95% of Books categories, so it is a volume game.
  • 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 Fiction best sellers

  1. The Unteachables: A Hilarious Novel About a Class of Misfits and Mayhem for Children (Ages book cover by Gordon Korman

    The Unteachables: A Hilarious Novel About a Class of Misfits and Mayhem for Children (Ages 8–12)

    by Gordon Korman

    • List rank#1
    • Price$9.97
    • Rating4.8
    • Reviews6,364

    View on Amazon · Full data on KDPTop

  2. The Lemonade War: Siblings Evan and Jessie wage a five-day lemonade-stand rivalry―a witty, book cover by Jacqueline Davies

    The Lemonade War: Siblings Evan and Jessie wage a five-day lemonade-stand rivalry―a witty, heartfelt tale of math, business, and family for ages 8-12. (The Lemonade War Series, 1)

    by Jacqueline Davies

    • List rank#2
    • Price$6.27
    • Rating4.7
    • Reviews4,952

    View on Amazon · Full data on KDPTop

  3. Jamberry book cover by Bruce Degen

    Jamberry

    by Bruce Degen

    • List rank#3
    • Price$7.12
    • Rating4.8
    • Reviews2,715

    View on Amazon · Full data on KDPTop

  4. The Grouchy Ladybug book cover by Eric Carle

    The Grouchy Ladybug

    by Eric Carle

    • List rank#4
    • Price-
    • Rating4.8
    • Reviews4,497

    View on Amazon · Full data on KDPTop

  5. The Chocolate Touch: Perfect Summer Reading for Kids book cover by Patrick Skene Catling

    The Chocolate Touch: Perfect Summer Reading for Kids

    by Patrick Skene Catling

    • List rank#5
    • Price$6.78
    • Rating4.6
    • Reviews6,177

    View on Amazon · Full data on KDPTop

  6. The Codebreakers Club Solve the Mystery of the Missing Puzzle Professor: 150+ Logic Puzzle book cover by Naoya Imanishi MEd

    The Codebreakers Club Solve the Mystery of the Missing Puzzle Professor: 150+ Logic Puzzles

    by Naoya Imanishi MEd

    • List rank#6
    • Price$8.08
    • Rating4.7
    • Reviews328

    View on Amazon · Full data on KDPTop

  7. The Math Inspectors: Story One - The Case of the Claymore Diamond book cover by Daniel Kenney

    The Math Inspectors: Story One - The Case of the Claymore Diamond

    by Daniel Kenney

    • List rank#7
    • Price$11.99
    • Rating4.5
    • Reviews1,362

    View on Amazon · Full data on KDPTop

  8. Wayside School Is Falling Down: Funny and Relatable School Stories in a Beloved Chapter Bo book cover by Louis Sachar

    Wayside School Is Falling Down: Funny and Relatable School Stories in a Beloved Chapter Book for Children (Ages 8-12)

    by Louis Sachar

    • List rank#8
    • Price$6.99
    • Rating4.7
    • Reviews2,703

    View on Amazon · Full data on KDPTop

  9. Goodnight Moon book cover by Margaret Wise Brown

    Goodnight Moon

    by Margaret Wise Brown

    • List rank#9
    • Price$6.37
    • Rating4.9
    • Reviews4,895

    View on Amazon · Full data on KDPTop

  10. Pete the Cat's Cool New Ride: A STEM Picture Book About Friendship and Counting for Childr book cover by James Dean

    Pete the Cat's Cool New Ride: A STEM Picture Book About Friendship and Counting for Children (Ages 4-8)

    by James Dean

    • List rank#10
    • Price$12.48
    • Rating4.8
    • Reviews120

    View on Amazon · Full data on KDPTop

FAQ

Is Fiction a good niche for Amazon KDP?

Its KDPTop opportunity score is 20/100, which makes it highly competitive. The median best seller has 322 reviews and sells for $8.08.

How many reviews do you need to rank in Fiction?

The median best seller has 322 reviews, and 22% of them have fewer than 100.

What do Fiction best sellers cost?

The median price is $8.08; half of the best sellers are priced between $6.79 and $10.99.

Can new books break into Fiction?

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.