KDP categories · Top KDP authors
Inventions & Inventors (Science, Nature & How It Works, Books): Amazon KDP category data
Amazon Books Best Sellers data for Inventions & Inventors (Science, Nature & How It Works, Books), updated Nov 2, 2026: median price $9.99, median 149 reviews, average rating 4.7 and a KDPTop opportunity score of 27/100 (highly competitive).
| Price range (middle 50%) | $6.46 – $14.99 |
|---|---|
| Average rating | 4.7 |
| New releases (90 days) | 5% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 6% of the parent category Science, Nature & How It Works (2,587), one of the easier corners under it.
- At $9.99 its median price is below 91% 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 Inventions & Inventors best sellers
-
Wind-up Digger: A Toy and Book Gift Featuring a Hands-On Exploration Of Diggers And Construction Sites
by Sarah Hull
- List rank#1
- Price$11.69
- Rating4.7
- Reviews248
-
Lift-the-Flap Periodic Table: An Interactive Usborne Book About the 118 Elements for Children (Ages 7-10) (See Inside)
by Alice James
- List rank#2
- Price$8.39
- Rating4.8
- Reviews150
-
Build your own Cars Sticker book: Build And Customize your own Supercars in this Interactive Sticker Book
- List rank#3
- Price$6.06
- Rating4.8
- Reviews932
-
Peek Inside How a Plane Works: A Fascinating Lift-the-Flap Book About Cockpits, Engines, and Wings for Children (Ages 3-5)
by Lara Bryan
- List rank#4
- Price$10.40
- Rating4.8
- Reviews585
-
Awesome Answers for Kids with 100,000 Whys: The Fully Illustrated Big Book of Questions and Amazing Answers for Curious Kids About Space, Science, Animals, Nature, the Human Body, Tech & Inventions
- List rank#5
- Price$19.90
- Rating4.8
- Reviews357
-
Cardboard Box Engineering: Cool, Inventive Projects for Tinkerers, Makers & Future Scientists
by Jonathan Adolph
- List rank#6
- Price$15.49
- Rating4.7
- Reviews581
-
Peek Inside how a Fire Truck works: An Interactive Introduction to Firefighters Who Save the Day for Children (Ages 3-5)
by Lara Bryan
- List rank#7
- Price$6.65
- Rating4.8
- Reviews433
-
See Inside How Things Work: A Usborne Flap Book Revealing Car Engines, Submarines, and Machines for Kids (Ages 6-9)
by Conrad Mason
- List rank#8
- Price$15.99
- Rating4.8
- Reviews120
-
Little First Stickers Diggers and Cranes: An Entertaining Sticker Activity Book About Construction for Children (Ages 3-5)
by Hannah Watson
- List rank#9
- Price$5.99
- Rating4.8
- Reviews89
-
Brain Games - Sticker by Letter: Robots (Sticker Puzzles - Kids Activity Book)
by Publications International Ltd.
- List rank#10
- Price$7.95
- Rating4.8
- Reviews1,407
Same niche in Kindle eBooks: Inventions & Inventors
FAQ
Is Inventions & Inventors a good niche for Amazon KDP?
Its KDPTop opportunity score is 27/100, which makes it highly competitive. The median best seller has 149 reviews and sells for $9.99.
How many reviews do you need to rank in Inventions & Inventors?
The median best seller has 149 reviews, and 38% of them have fewer than 100.
What do Inventions & Inventors best sellers cost?
The median price is $9.99; half of the best sellers are priced between $6.46 and $14.99.
Can new books break into Inventions & Inventors?
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.