KDP categories · Top KDP authors
Mechanics (Physics, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Mechanics (Physics, Kindle eBooks), updated Nov 3, 2026: median price $6.99, median 10 reviews, average rating 4.4 and a KDPTop opportunity score of 21/100 (highly competitive).
| Price range (middle 50%) | $4.99 – $14.72 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 18% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 2% of the parent category Physics (682), one of the easier corners under it.
- The same niche in Books scores 33, 11 points higher than here; worth checking both.
- 18% of its best sellers came out in the last 90 days, more than in 83% of Kindle eBooks categories: readers here keep buying new titles.
Top 10 Mechanics best sellers
-
Basic Machines and How They Work
by Naval Education
- List rank#1
- Price$0.99
- Rating4.5
- Reviews1,055
-
Scientific American September 2026
- List rank#2
- Price$6.99
- Rating4.8
- Reviews13
-
Scientific American October 2026
- List rank#3
- Price$6.99
- Rating4.2
- Reviews7
-
Scientific American June 2026
- List rank#4
- Price$6.99
- Rating4.4
- Reviews42
-
Scientific American November 2026
- List rank#5
- Price$6.99
- Reviews-
-
507 Mechanical Movements
by Henry T. Brown
- List rank#6
- Price$0.99
- Rating4.5
- Reviews1,608
-
Scientific American July/August 2026
- List rank#7
- Price$6.99
- Rating4.7
- Reviews8
-
Essential Calculus-based Physics Study Guide Workbook: The Laws of Motion (Learn Physics with Calculus Step-by-Step Book 1)
- List rank#8
- Price$5.99
- Rating4.7
- Reviews373
-
Principles of Quantum Mechanics 2nd Edition, Kindle Edition
by R. Shankar
- List rank#9
- Price$3.99
- Rating4.5
- Reviews418
-
Zinn & the Art of Road Bike Maintenance: The World's Best-Selling Bicycle Repair and Maintenance Guide
by Lennard Zinn
- List rank#10
- Price$2.99
- Rating4.7
- Reviews1,353
Same niche in Books: Mechanics
FAQ
Is Mechanics a good niche for Amazon KDP?
Its KDPTop opportunity score is 21/100, which makes it highly competitive. The median best seller has 10 reviews and sells for $6.99.
How many reviews do you need to rank in Mechanics?
The median best seller has 10 reviews, and 73% of them have fewer than 100.
What do Mechanics best sellers cost?
The median price is $6.99; half of the best sellers are priced between $4.99 and $14.72.
Can new books break into Mechanics?
18% 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.