KDP categories · Top KDP authors
Mechanical Engineering: Amazon KDP category data
Amazon Books Best Sellers data for Mechanical Engineering, updated Nov 2, 2026: median price $57.96, median 42 reviews, average rating 4.5 and a KDPTop opportunity score of 33/100 (highly competitive).
| Price range (middle 50%) | $33.99 – $105 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 4% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 19% of the parent category Engineering (220), one of the easier corners under it.
- At $57.96 its median price beats 97% of Books categories, leaving more margin per copy.
- 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 Mechanical Engineering best sellers
-
Machinery's Handbook: Toolbox
by Erik Oberg
- List rank#1
- Price$82.21
- Rating4.7
- Reviews293
-
Basic Machines and How They Work
by Naval Education And Training Program
- List rank#2
- Price$9.93
- Rating4.5
- Reviews1,055
-
Audel Mechanical Trades Pocket Manual (Audel Technical Trades Series)
by Thomas B. Davis
- List rank#3
- Price$16.30
- Rating4.7
- Reviews558
-
The Complete Book of Locks and Locksmithing, Seventh Edition
by Phillips
- List rank#4
- Price$20.68
- Rating4.6
- Reviews542
-
The Beginner's Guide to Engineering: Mechanical Engineering
by Mark Huber
- List rank#5
- Price$20.99
- Rating4.5
- Reviews318
-
Roark's Formulas for Stress and Strain, Ninth Edition
by Richard G. Budynas
- List rank#6
- Price$94.48
- Rating4.9
- Reviews96
-
Mechanical Engineering for Makers: A Hands-on Guide to Designing and Making Physical Things (Make)
by Brian Bunnell
- List rank#7
- Price$17.19
- Rating4.4
- Reviews637
-
Machinery's Handbook Pocket Companion: Quick Access to Basic Data & More from the 32nd Edition
by Erik Oberg
- List rank#8
- Price$32.84
- Rating4.6
- Reviews22
-
How to Repair Briggs and Stratton Engines, 4th Ed.
by Paul DEMPSEY
- List rank#9
- Price$12.04
- Rating4.3
- Reviews625
-
How to Ace Statics with Jeff Hanson
by Jeff Hanson
- List rank#10
- Price$28.11
- Rating4.8
- Reviews115
FAQ
Is Mechanical Engineering a good niche for Amazon KDP?
Its KDPTop opportunity score is 33/100, which makes it highly competitive. The median best seller has 42 reviews and sells for $57.96.
How many reviews do you need to rank in Mechanical Engineering?
The median best seller has 42 reviews, and 66% of them have fewer than 100.
What do Mechanical Engineering best sellers cost?
The median price is $57.96; half of the best sellers are priced between $33.99 and $105.
Can new books break into Mechanical Engineering?
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.