KDP categories · Top KDP authors
Mechanical (Engineering, Books): Amazon KDP category data
Amazon Books Best Sellers data for Mechanical (Engineering, Books), updated Nov 3, 2026: median price $18.99, median 303 reviews, average rating 4.5 and a KDPTop opportunity score of 34/100 (highly competitive).
| Price range (middle 50%) | $13.28 – $24.83 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 15% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 23% of the parent category Engineering (1,328), one of the easier corners under it.
- 15% of its best sellers came out in the last 90 days, more than in 80% of Books categories: readers here keep buying new titles.
Top 10 Mechanical best sellers
-
The AGI Chronicles: The Inside Story of the Race to Create an Artificial Superintelligence
by Kevin Roose
- List rank#1
- Price$21.74
- Rating4.7
- Reviews177
-
Co-Intelligence: Living and Working with AI
- List rank#2
- Price$13.69
- Rating4.5
- Reviews4,314
-
Blood in the Machine: The Origins of the Rebellion Against Big Tech
by Brian Merchant
- List rank#3
- Price$1.99
- Rating4.4
- Reviews293
-
Life 3.0: Being Human in the Age of Artificial Intelligence
by Max Tegmark
- List rank#4
- Price$9.22
- Rating4.4
- Reviews6,304
-
The Pipe Fitters Blue Book
by W. V. Graves
- List rank#5
- Price$28.66
- Rating4.8
- Reviews3,259
-
Basic Machines and How They Work
by Naval Education
- List rank#6
- Price$0.99
- Rating4.5
- Reviews1,055
-
507 Mechanical Movements
by Henry T. Brown
- List rank#7
- Price$5.15
- Rating4.5
- Reviews1,608
-
How to Build a Car: The Autobiography of the World’s Greatest Formula 1 Designer
by Adrian Newey
- List rank#8
- Price$27.32
- Rating4.7
- Reviews9,040
-
Scientific American September 2026
- List rank#9
- Price$6.99
- Rating4.8
- Reviews13
-
Make: Electronics: Learning by Discovery: A hands-on primer for the new electronics enthusiast
- List rank#10
- Price$19.29
- Rating4.8
- Reviews961
Subcategories
Same niche in Kindle eBooks: Mechanical
FAQ
Is Mechanical a good niche for Amazon KDP?
Its KDPTop opportunity score is 34/100, which makes it highly competitive. The median best seller has 303 reviews and sells for $18.99.
How many reviews do you need to rank in Mechanical?
The median best seller has 303 reviews, and 34% of them have fewer than 100.
What do Mechanical best sellers cost?
The median price is $18.99; half of the best sellers are priced between $13.28 and $24.83.
Can new books break into Mechanical?
15% 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.