KDP categories · Top KDP authors
Matrices (Mathematics, Books): Amazon KDP category data
Amazon Books Best Sellers data for Matrices (Mathematics, Books), updated Nov 3, 2026: median price $19.99, median 15 reviews, average rating 4.5 and a KDPTop opportunity score of 25/100 (highly competitive).
| Price range (middle 50%) | $12.28 – $35 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 7% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 1% of the parent category Mathematics (1,295), one of the easier corners under it.
- 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.
- Prices spread wide: the middle half runs from $12.28 to $35, so budget editions and premium or boxed sets sell side by side.
Top 10 Matrices best sellers
-
Big Math: The Hidden Codes That Run Our World
- List rank#1
- Price$30
- Reviews-
-
Algebra II For Dummies, 2nd Edition
- List rank#2
- Price$18.55
- Rating4.5
- Reviews1,020
-
Math Riddles for Young Thinkers (Kids Ages 6-8 | 9-12): Over 200 Fun and Challenging Riddles & Brain Teasers to Enhance Math Skills and Smart Thinking
by Prodigy Paper Editions
- List rank#3
- Price$9.99
- Rating4.5
- Reviews144
-
Pocket Sudoku that is Portable: 200 puzzles Medium to Hard w/ Solutions - 4" by 6" is Small Enough to Enjoy Anytime, Anywhere!
by Larisa Tucker
- List rank#4
- Price$6.99
- Rating4.2
- Reviews30
-
Algebra II Workbook For Dummies
- List rank#5
- Price$11.48
- Rating4.5
- Reviews676
-
Linear Algebra Problems & Solutions
by Kathryn Paulk
- List rank#6
- Price$12
- Reviews-
-
Linear Algebra: Theory, Intuition, Code
by Mike X Cohen
- List rank#7
- Price$9.99
- Rating4.7
- Reviews266
-
Picross Hanjie Griddlers Nonograms: 200++ ATARASHI Black and White Japanese Paint With Su Doku Numbers Puzzles For Adults (Visual Deduction: The Complete Picture Logic Collection)
by Djape
- List rank#8
- Price$11.99
- Rating4.6
- Reviews58
-
Tricky Math Riddles for Kids: Screen-Free STEM Activities for Grades 6–8 to Crush Math Anxiety, Unlock Smarter Thinking and Make Family Time Fun
by Skill Builder Academy
- List rank#9
- Price$14.99
- Rating4.7
- Reviews117
-
Matrix Analysis
by Roger A. Horn
- List rank#10
- Price$40
- Rating4.4
- Reviews105
Same niche in Kindle eBooks: Matrices
FAQ
Is Matrices a good niche for Amazon KDP?
Its KDPTop opportunity score is 25/100, which makes it highly competitive. The median best seller has 15 reviews and sells for $19.99.
How many reviews do you need to rank in Matrices?
The median best seller has 15 reviews, and 84% of them have fewer than 100.
What do Matrices best sellers cost?
The median price is $19.99; half of the best sellers are priced between $12.28 and $35.
Can new books break into Matrices?
7% 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.