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Opposites (Basic Concepts, Books): Amazon KDP category data

Amazon Books Best Sellers data for Opposites (Basic Concepts, Books), updated Nov 2, 2026: median price $7.67, median 390 reviews, average rating 4.7 and a KDPTop opportunity score of 18/100 (highly competitive).

18Opportunity / 100
$7.67Median price
390Median reviews
Price range (middle 50%)$5.98 – $9.99
Average rating4.7
New releases (90 days)5%
Books on the list100
StoreBooks

What stands out

  • Its median reviews are 12% of the parent category Basic Concepts (3,176), one of the easier corners under it.
  • At $7.67 its median price is below 96% 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 Opposites best sellers

  1. Opposites book cover by Sandra Boynton

    Opposites

    by Sandra Boynton

    • List rank#1
    • Price$5.81
    • Rating4.8
    • Reviews3,012

    View on Amazon · Full data on KDPTop

  2. The Foot Book: Dr. Seuss's Wacky Book of Opposites (Bright & Early Board Books) book cover by Dr. Seuss

    The Foot Book: Dr. Seuss's Wacky Book of Opposites (Bright & Early Board Books)

    by Dr. Seuss

    • List rank#2
    • Price$5.46
    • Rating4.8
    • Reviews12,208

    View on Amazon · Full data on KDPTop

  3. Disney Pixar Cars Lightning McQueen, Mater, and More! - My First Library Board Book Block  book cover by PI Kids

    Disney Pixar Cars Lightning McQueen, Mater, and More! - My First Library Board Book Block 12-Book Set - First Words, Alphabet, Numbers, and More! Baby Books - PI Kids

    by PI Kids

    • List rank#3
    • Price$15.83
    • Rating4.8
    • Reviews397

    View on Amazon · Full data on KDPTop

  4. Indestructibles (The Original): My Neighborhood: Chew Proof · Rip Proof · Nontoxic · 100%  book cover by Maddie Frost

    Indestructibles (The Original): My Neighborhood: Chew Proof · Rip Proof · Nontoxic · 100% Washable (Book for Babies, Newborn Books, Safe to Chew)

    by Maddie Frost

    • List rank#4
    • Price$4.09
    • Rating4.8
    • Reviews1,883

    View on Amazon · Full data on KDPTop

  5. Freight Train: A Caldecott Honor Award Winner (Caldecott Collection) book cover by Donald Crews

    Freight Train: A Caldecott Honor Award Winner (Caldecott Collection)

    by Donald Crews

    • List rank#5
    • Price$7.18
    • Rating4.8
    • Reviews2,003

    View on Amazon · Full data on KDPTop

  6. Big Dog . . . Little Dog (Bright & Early Board Books) book cover by P.D. Eastman

    Big Dog . . . Little Dog (Bright & Early Board Books)

    by P.D. Eastman

    • List rank#6
    • Price$4.64
    • Rating4.6
    • Reviews2,092

    View on Amazon · Full data on KDPTop

  7. My First 100 Library: Boxset of 5 Early Learning Board Books for Kids/Children (homeschool book cover by Wonder House Books

    My First 100 Library: Boxset of 5 Early Learning Board Books for Kids/Children (homeschool / preschool / baby/toddler)

    by Wonder House Books

    • List rank#7
    • Price$16.49
    • Rating4.7
    • Reviews1,171

    View on Amazon · Full data on KDPTop

  8. Yummy Yucky: (An Eating Habits Concept Book of Opposite Tastes and Textures for Babies and book cover by Leslie Patricelli

    Yummy Yucky: (An Eating Habits Concept Book of Opposite Tastes and Textures for Babies and Toddlers) (Leslie Patricelli Board Books)

    by Leslie Patricelli

    • List rank#8
    • Price$6.79
    • Rating4.8
    • Reviews1,961

    View on Amazon · Full data on KDPTop

  9. Big Shark, Little Shark (Step into Reading, Step 1) book cover by Anna Membrino

    Big Shark, Little Shark (Step into Reading, Step 1)

    by Anna Membrino

    • List rank#9
    • Price$4.74
    • Rating4.8
    • Reviews11,960

    View on Amazon · Full data on KDPTop

  10. Let There Be Light: Teaching Opposites Through Scripture | Christian Board Book | Ages 0–4 book cover by Danielle Hitchen

    Let There Be Light: Teaching Opposites Through Scripture | Christian Board Book | Ages 0–4 (Baby Believer)

    by Danielle Hitchen

    • List rank#10
    • Price$7.39
    • Rating4.9
    • Reviews683

    View on Amazon · Full data on KDPTop

Same niche in Kindle eBooks: Opposites

FAQ

Is Opposites a good niche for Amazon KDP?

Its KDPTop opportunity score is 18/100, which makes it highly competitive. The median best seller has 390 reviews and sells for $7.67.

How many reviews do you need to rank in Opposites?

The median best seller has 390 reviews, and 20% of them have fewer than 100.

What do Opposites best sellers cost?

The median price is $7.67; half of the best sellers are priced between $5.98 and $9.99.

Can new books break into Opposites?

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.