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Size & Shape (Basic Concepts, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Size & Shape (Basic Concepts, Kindle eBooks), updated Nov 2, 2026: median price $4.30, median 80 reviews, average rating 4.6 and a KDPTop opportunity score of 18/100 (highly competitive).
| Price range (middle 50%) | $2.99 – $5.99 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 2% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Only 2% of its best sellers are under 90 days old, fewer than in 93% of Kindle eBooks categories: established titles hold the list.
- Its median reviews are 26% of the parent category Basic Concepts (310), one of the easier corners under it.
- At $4.30 its median price is below 93% of Kindle eBooks categories, so it is a volume game.
Top 10 Size & Shape best sellers
-
Pizza Party! (The Tiny Chef Show)
- List rank#1
- Price$4.99
- Rating4.8
- Reviews41
-
Patterns (Simply Math)
by Sara Pistoia
- List rank#2
- Price$15.64
- Reviews-
-
Great Shape Hunt, The (Sesame Street)
by Kathryn Knight
- List rank#3
- Price$3.99
- Rating4.5
- Reviews79
-
-
The Itty-Bitty Witch
by Trisha Speed Shaskan
- List rank#5
- Price$3.99
- Rating4.3
- Reviews133
-
My First Book of Colors and Shapes: Learning Fun for Toddlers
by Rockridge Press
- List rank#6
- Price$6.64
- Rating4.6
- Reviews823
-
Ninja Life Hacks SHAPES: Perfect Children's Book for Babies, Toddlers, Preschool About Shapes (Little Ninja Life Hacks 2)
by Mary Nhin
- List rank#7
- Price$5.99
- Rating3.8
- Reviews17
-
Peek-A-Boo Jungle: A Fun Animal Guessing Book For Little Ones
by Cindy Bracken
- List rank#8
- Price$0.99
- Rating4.1
- Reviews237
-
You Can Do It!: An Inspiring Little Book about the Big Power of Perseverance with Sesame Street! (Affirmations and Self-Esteem Books For Toddlers and Kids, ... Learning) (Sesame Street Scribbles)
by Craig Manning
- List rank#9
- Price$3.99
- Rating4.8
- Reviews311
-
My First Bob Books - Pre-Reading Skills | Phonics, Ages 3 and up, Pre-K (Reading Readiness)
by Lynn Maslen Kertell
- List rank#10
- Price$5.49
- Rating4.7
- Reviews2,465
Same niche in Books: Size & Shape
FAQ
Is Size & Shape a good niche for Amazon KDP?
Its KDPTop opportunity score is 18/100, which makes it highly competitive. The median best seller has 80 reviews and sells for $4.30.
How many reviews do you need to rank in Size & Shape?
The median best seller has 80 reviews, and 55% of them have fewer than 100.
What do Size & Shape best sellers cost?
The median price is $4.30; half of the best sellers are priced between $2.99 and $5.99.
Can new books break into Size & Shape?
2% 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.