KDP categories · Top KDP authors
Magnetism: Amazon KDP category data
Amazon Books Best Sellers data for Magnetism, updated Nov 2, 2026: median price $41.59, median 15 reviews, average rating 4.5 and a KDPTop opportunity score of 27/100 (highly competitive).
| Price range (middle 50%) | $21.46 – $80.98 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 6% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 8% of the parent category Electromagnetism (180), one of the easier corners under it.
- At $41.59 its median price beats 94% of Books categories, leaving more margin per copy.
- Its review barrier is lower than in 77% of Books categories: the median best seller has only 15 reviews, so new books can chart with few.
Top 10 Magnetism best sellers
-
Scientific American September 2026
- List rank#1
- Price$6.99
- Rating4.8
- Reviews13
-
Scientific American October 2026
- List rank#2
- Price$6.99
- Rating4.2
- Reviews7
-
Scientific American June 2026
- List rank#3
- Price$6.99
- Rating4.4
- Reviews42
-
Scientific American November 2026
- List rank#4
- Price$6.99
- Reviews-
-
The Invisible Rainbow: A History of Electricity and Life
by Arthur Firstenberg
- List rank#5
- Price$18.43
- Rating4.8
- Reviews2,835
-
Electricity and Magnetism
by Edward M. Purcell
- List rank#6
- Price$51.99
- Rating4.7
- Reviews268
-
Magnetic Current
by Edward Leedskalnin
- List rank#7
- Price$9.99
- Rating4.2
- Reviews713
-
Fundamentals and Exercises of Electrical Engineering: Theory, Theorems, and Applications in DC and AC with Applied Exercises (Step-by-Step Electrical Engineering Series)
by Sabino Di Vietri
- List rank#8
- Price$19.90
- Rating4.2
- Reviews142
-
Scientific American May 2026
- List rank#9
- Price$6.99
- Rating4.0
- Reviews1
-
Understanding Physics (Motion, Sound, and Heat / Light, Magnetism, and Electricity / The Electron, Proton, and Neutron)
by Isaac Asimov
- List rank#10
- Price$39
- Rating4.7
- Reviews225
FAQ
Is Magnetism a good niche for Amazon KDP?
Its KDPTop opportunity score is 27/100, which makes it highly competitive. The median best seller has 15 reviews and sells for $41.59.
How many reviews do you need to rank in Magnetism?
The median best seller has 15 reviews, and 82% of them have fewer than 100.
What do Magnetism best sellers cost?
The median price is $41.59; half of the best sellers are priced between $21.46 and $80.98.
Can new books break into Magnetism?
6% 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.