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Inventions & Inventors (Science, Nature & How It Works, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Inventions & Inventors (Science, Nature & How It Works, Kindle eBooks), updated Nov 2, 2026: median price $5.99, median 64 reviews, average rating 4.7 and a KDPTop opportunity score of 19/100 (highly competitive).
| Price range (middle 50%) | $3.99 – $8.84 |
|---|---|
| Average rating | 4.7 |
| New releases (90 days) | 20% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 19% of the parent category Science, Nature & How It Works (336), one of the easier corners under it.
- 20% of its best sellers came out in the last 90 days, more than in 86% of Kindle eBooks categories: readers here keep buying new titles.
- Prices spread wide: the middle half runs from $3.99 to $8.84, so budget editions and premium or boxed sets sell side by side.
Top 10 Inventions & Inventors best sellers
-
Weird Inventions (Anything But Ordinary)
by Jennifer Kaul
- List rank#1
- Price$8.99
- Rating4.5
- Reviews2
-
Awesome Science Experiments for Kids: 100+ Fun STEAM Projects & Why They Work!
by Crystal Chatterton
- List rank#2
- Price$8.99
- Rating4.7
- Reviews15,598
-
Bomb: The Race to Build--and Steal--the World's Most Dangerous Weapon (Newbery Honor Book & National Book Award Finalist)
- List rank#3
- Price$11.99
- Rating4.6
- Reviews1,930
-
George Washington Carver (National Geographic Kids Readers, Level 1)
by Kitson Jazynka
- List rank#4
- Price$4.99
- Rating4.8
- Reviews369
-
Piece by Piece: How I Built My Life (No Instructions Required)
by David Aguilar
- List rank#5
- Price$1.99
- Rating4.6
- Reviews110
-
Inventor Ninja: A Children's Book About Creativity and Where Ideas Come From (Ninja Life Hacks 3)
by Mary Nhin
- List rank#6
- Price$5.99
- Rating4.6
- Reviews403
-
Incredible True Stories for Curious Kids: Fascinating Tales of Historic Moments, Accidental Inventions, Pop Culture Icons, Wildlife Mysteries, and Surprising Facts
by Diana Reinhart
- List rank#7
- Price$3.99
- Rating4.7
- Reviews49
-
The Curious Girl’s Book of Unusual Facts: Wild Knowledge from Outer Space to Ancient Rome, Plus Life Skills, Brain Teasers, Experiments, and Stories of ... Women (Essential toolkit for young girls)
by Melanie Hobart
- List rank#8
- Price$2.99
- Rating4.9
- Reviews15
-
Copycat: Nature-Inspired Design Around the World
by Christy Hale
- List rank#9
- Price$9.99
- Rating3.8
- Reviews5
-
The Boy Who Asks A Gazillion Whys: A STEM Picture Book for Curious Minds. Science, Gravity & Funny Whys for Kids (Curious Kids Collection)
- List rank#10
- Price$5.99
- Rating4.4
- Reviews123
Same niche in Books: Inventions & Inventors
FAQ
Is Inventions & Inventors a good niche for Amazon KDP?
Its KDPTop opportunity score is 19/100, which makes it highly competitive. The median best seller has 64 reviews and sells for $5.99.
How many reviews do you need to rank in Inventions & Inventors?
The median best seller has 64 reviews, and 55% of them have fewer than 100.
What do Inventions & Inventors best sellers cost?
The median price is $5.99; half of the best sellers are priced between $3.99 and $8.84.
Can new books break into Inventions & Inventors?
20% 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.