KDP categories · Top KDP authors
Transformations (Mathematics, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Transformations (Mathematics, Kindle eBooks), updated Nov 2, 2026: median price $9.99, median 2 reviews, average rating 4.1 and a KDPTop opportunity score of 27/100 (highly competitive).
| Price range (middle 50%) | $4.98 – $13.79 |
|---|---|
| Average rating | 4.1 |
| New releases (90 days) | 2% |
| Books on the list | 90 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 1% of the parent category Mathematics (286), one of the easier corners under it.
- Its review barrier is lower than in 95% of Kindle eBooks categories: the median best seller has only 2 reviews, so new books can chart with few.
- Only 2% of its best sellers are under 90 days old, fewer than in 88% of Kindle eBooks categories: established titles hold the list.
Top 10 Transformations best sellers
-
My Inventions: The Autobiography of Nikola Tesla
by Nikola Tesla
- List rank#1
- Price$0.49
- Rating4.3
- Reviews4,852
-
THE GOLDEN RATIO: The Secret Behind Beauty, Nature & Genius
by PAUL MAMPILLY
- List rank#2
- Price$2.99
- Reviews-
-
Linear Algebra: An Easy Way to Learn Key Concepts
by Alexandr Draganov
- List rank#3
- Price$9.80
- Rating4.8
- Reviews10
-
Linear Systems and Operators in Hilbert Space (Dover Books on Mathematics)
by Paul A. Fuhrmann
- List rank#4
- Price$9.99
- Rating4.7
- Reviews4
-
How the Fourier Transform Works
by Mark H Newman
- List rank#5
- Price$9.99
- Rating4.7
- Reviews45
-
Deep Learning with PyTorch Step-by-Step: A Beginner's Guide: Volume II: Computer Vision
by Daniel Voigt Godoy
- List rank#6
- Price$9.95
- Rating4.5
- Reviews41
-
How the Fourier Series Works (The Fourier Transform Book 1)
by Mark H Newman
- List rank#7
- Price$9.99
- Rating4.4
- Reviews82
-
Integral Transforms and Their Applications
by Lokenath Debnath
- List rank#8
- Price$75.99
- Rating4.3
- Reviews7
-
The Power of Actions: Activate Potential, Achieve Mastery, Drive Success, and Take Control of Your Life. (Super Power Series)
by Pradip Das
- List rank#9
- Price$2.99
- Reviews-
-
The Infinite Pivot: Miquel, Clifford and the Secret Machinery of Olympiad Geometry (The Art Of Creative Math Book 3)
by Hui Quan
- List rank#10
- Price$12.95
- Rating5.0
- Reviews1
Same niche in Books: Transformations
FAQ
Is Transformations a good niche for Amazon KDP?
Its KDPTop opportunity score is 27/100, which makes it highly competitive. The median best seller has 2 reviews and sells for $9.99.
How many reviews do you need to rank in Transformations?
The median best seller has 2 reviews, and 98% of them have fewer than 100.
What do Transformations best sellers cost?
The median price is $9.99; half of the best sellers are priced between $4.98 and $13.79.
Can new books break into Transformations?
2% 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.