KDP categories · Top KDP authors
How Things Work (Science, Nature & How It Works, Books): Amazon KDP category data
Amazon Books Best Sellers data for How Things Work (Science, Nature & How It Works, Books), updated Nov 2, 2026: median price $11.99, median 164 reviews, average rating 4.7 and a KDPTop opportunity score of 32/100 (highly competitive).
| Price range (middle 50%) | $8.73 – $17.37 |
|---|---|
| Average rating | 4.7 |
| New releases (90 days) | 13% |
| 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 $11.99 its median price is below 82% of Books categories, so it is a volume game.
Top 10 How Things Work best sellers
-
Balloons Over Broadway: An Inspiring True Story About Parade Balloons for Children (Ages 4–8)
- List rank#1
- Price$10.50
- Rating4.8
- Reviews2,256
-
100,000 Whys - The Big Journey for Curious Kids: An Extraordinary Collection of Big Questions, Fascinating Answers, and Mind-Blowing Fun Facts for Smart Kids Ages 6–12
by Rayan Yale
- List rank#2
- Price$19.97
- Rating3.6
- Reviews932
-
100,000 Whys: The Ultimate Kids’ Encyclopedia by Bright & Able: Big Questions, Amazing Answers, and Fun Facts About Science, Animals, Space, and How Things Work
by Margaret Ellison
- List rank#3
- Price$33.24
- Rating4.6
- Reviews3
-
Will Holding in a Fart Make You Explode: Quirky Questions and Intriguing Answers for Teens
by Lauren Clearwell
- List rank#4
- Price$11.97
- Rating4.4
- Reviews125
-
100,000 Whys for Kids — The Big Book of Everyday Whys: A Full-Color Encyclopedia of the Surprising Science Behind Your Body, Food, Weather, Technology & How Things Work—Ages 6–13
by Theo Whitmore
- List rank#5
- Price$19.97
- Rating4.6
- Reviews139
-
100,000 Whys for Kids: A Full-Color Visual Encyclopedia of Animals, Space, Planet Earth, Nature, the Human Body, Science, Food, History, Senses and ... and How the World Works for Ages 6–13
- List rank#6
- Price$37.99
- Rating4.4
- Reviews902
-
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#7
- Price$8.39
- Rating4.8
- Reviews150
-
Cars, Trains, Ships, and Planes: A Visual Transportation Encyclopedia for Kids (DK Our World in Pictures)
by DK
- List rank#8
- Price$13.50
- Rating4.9
- Reviews2,082
-
The Unordinary Book of Ideas: Everywhen Projects for Rainy Days (Offline Books)
by Half-Asleep Chris
- List rank#9
- Price$27.95
- Rating5.0
- Reviews21
-
100,000 Whys for Smart Toddlers: Full Color Illustrated Encyclopedia for Little Curious Minds, Fun Answers to the Endless Whys, Discover Everyday ... More (Answers with Stories for Kids Ages 2-4)
- List rank#10
- Price$18.91
- Rating4.8
- Reviews20
Same niche in Kindle eBooks: How Things Work
FAQ
Is How Things Work a good niche for Amazon KDP?
Its KDPTop opportunity score is 32/100, which makes it highly competitive. The median best seller has 164 reviews and sells for $11.99.
How many reviews do you need to rank in How Things Work?
The median best seller has 164 reviews, and 34% of them have fewer than 100.
What do How Things Work best sellers cost?
The median price is $11.99; half of the best sellers are priced between $8.73 and $17.37.
Can new books break into How Things Work?
13% 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.