KDP categories · Top KDP authors
Inventions: Amazon KDP category data
Amazon Books Best Sellers data for Inventions, updated Nov 2, 2026: median price $14.68, median 8 reviews, average rating 4.5 and a KDPTop opportunity score of 23/100 (highly competitive).
| Price range (middle 50%) | $10.99 – $18.72 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 4% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 7% of the parent category Technology (109), one of the easier corners under it.
- Its review barrier is lower than in 85% of Books categories: the median best seller has only 8 reviews, so new books can chart with few.
- Only 4% of its best sellers are under 90 days old, fewer than in 82% of Books categories: established titles hold the list.
Top 10 Inventions best sellers
-
Knowledge Encyclopedia - Inventions and Discoveries (Knowledge Encyclopedia For Children)
- List rank#1
- Price$19.99
- Rating4.7
- Reviews1,078
-
Awesome Facts That Will Make You Look Super Smart: Science & History (Interesting Fun Facts For Teen & Adult)
by Nomito Creative Studio
- List rank#2
- Price$12.99
- Rating4.5
- Reviews205
-
How Cars Work Interactive Workbook: Master Engines, Brakes, and Gears with Big Color Diagrams, Missions, Quizzes, and Level-Up Badges to Build Real Mechanic Thinking | EVs and Modern Safety Tech
by Nolan Reddick
- List rank#3
- Price$22.97
- Rating4.6
- Reviews51
-
Getting Started With Arduino: The Open Source Electronics Prototyping Platform (Make)
by Massimo Banzi
- List rank#4
- Price$16.95
- Rating4.6
- Reviews156
-
The Big Book of How Things Work: Fully Illustrated Answers to Machines, Gadgets, Science, Nature, Space, and Everyday Life (Young Explorer Series)
- List rank#5
- Price$14.97
- Rating4.2
- Reviews57
-
Steve Jobs: The Man Who Thought Different: A Biography
by Karen Blumenthal
- List rank#6
- Price$8.79
- Rating4.6
- Reviews1,480
-
Digital Life Skills for Teens: How to Communicate, Behave, Stay Safe, and Find Balance in an Online World. The Essential Digital Survival Guide (Life Skills for Tweens, Teens & Young Adults)
by Ferne Bowe
- List rank#7
- Price$11.89
- Rating4.5
- Reviews27
-
Great Inventors and their Inventions
by Frank P. Bachman
- List rank#8
- Price$9.99
- Rating4.5
- Reviews132
-
Spies: The Secret Showdown Between America and Russia
by Marc Favreau
- List rank#9
- Price-
- Rating4.7
- Reviews73
-
Black Pioneers of Science and Invention: Fourteen Innovators Who Saved Lives and Altered American History
by Louis Haber
- List rank#10
- Price$7.17
- Rating4.8
- Reviews1,182
FAQ
Is Inventions a good niche for Amazon KDP?
Its KDPTop opportunity score is 23/100, which makes it highly competitive. The median best seller has 8 reviews and sells for $14.68.
How many reviews do you need to rank in Inventions?
The median best seller has 8 reviews, and 79% of them have fewer than 100.
What do Inventions best sellers cost?
The median price is $14.68; half of the best sellers are priced between $10.99 and $18.72.
Can new books break into Inventions?
4% 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.