KDP categories · Top KDP authors
Engineering (Science Studies, Books): Amazon KDP category data
Amazon Books Best Sellers data for Engineering (Science Studies, Books), updated Nov 3, 2026: median price $12.99, median 11 reviews, average rating 4.6 and a KDPTop opportunity score of 35/100 (highly competitive).
| Price range (middle 50%) | $11.96 – $16.23 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 27% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 0% of the parent category Science Studies (2,323), one of the easier corners under it.
- 27% of its best sellers came out in the last 90 days, more than in 95% of Books categories: readers here keep buying new titles.
- Its review barrier is lower than in 82% of Books categories: the median best seller has only 11 reviews, so new books can chart with few.
Top 10 Engineering best sellers
-
Amazing Answers for Kids With 100,000 Whys: The Big Book of Answers to Questions Curious Kids Ask About Science, Space, Nature, Animals, History, The Human Body, Technology & AI, and Everyday Life
- List rank#1
- Price$18.99
- Rating4.1
- Reviews854
-
Super Interesting Facts For Smart Kids: 1272 Fun Facts About Science, Animals, Earth and Everything in Between
by Jordan Moore
- List rank#2
- Price$9.97
- Rating4.7
- Reviews4,039
-
The Ultimate Book of 100,000 Whys: Curiosity Comes Alive! A Full-Color Illustrated Encyclopedia of Big Questions, Clear Answers & Amazing Facts for Curious Kids Ages 6–12
by EVANS J. NORTH
- List rank#3
- Price$13.97
- Rating5.0
- Reviews4
-
100,000 Whys - The Encyclopedia for Endlessly Curious Kids: Big Questions and Amazing Answers About Science, Space, Animals, History, and Everything Kids Want to Know (Ages 6–12)
by Oliver Everwood
- List rank#4
- Price$19.98
- Rating4.8
- Reviews139
-
The Girl Who Has A Million Problems: A STEM Story That Teaches Kids to Solve Problems, Manage Big Feelings, Regulate Emotions, and Think Creatively, Ages 4–7 (A Million Mistakes Series)
by Brenda Li
- List rank#5
- Price$10.99
- Rating4.6
- Reviews479
-
How Cars Work for Kids: 32 Bite-Sized Daily STEM Lessons for Little Mechanics
by Peter Renson
- List rank#6
- Price$17.99
- Rating4.9
- Reviews11
-
The Plan for the Gingerbread House: A STEM Engineering Story
by Darcy Pattison
- List rank#7
- Price$10.79
- Rating4.5
- Reviews96
-
The Ultimate Facts Advent Calendar Book for Smart Kids: 24 Days of 288 Fun Facts About History, Geography, Food, Inventions and Everything in Between ... Countdown Book for Curious Kids Ages 8-12
by Elliot Wade Finch
- List rank#8
- Price$16.99
- Rating4.8
- Reviews39
-
Girls & Gears
by Patricia Cortez
- List rank#9
- Price$12.99
- Reviews-
-
Discover All Kinds of Cars!: A Fun and Educational Guide to Car Types and Styles for Kids Who Love Vehicles!
by Julian Renson
- List rank#10
- Price$13.99
- Rating4.4
- Reviews47
FAQ
Is Engineering a good niche for Amazon KDP?
Its KDPTop opportunity score is 35/100, which makes it highly competitive. The median best seller has 11 reviews and sells for $12.99.
How many reviews do you need to rank in Engineering?
The median best seller has 11 reviews, and 82% of them have fewer than 100.
What do Engineering best sellers cost?
The median price is $12.99; half of the best sellers are priced between $11.96 and $16.23.
Can new books break into Engineering?
27% 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.