KDP categories · Top KDP authors
Infinity (Mathematics, Books): Amazon KDP category data
Amazon Books Best Sellers data for Infinity (Mathematics, Books), updated Nov 3, 2026: median price $19.99, median 10 reviews, average rating 4.4 and a KDPTop opportunity score of 25/100 (highly competitive).
| Price range (middle 50%) | $12.99 – $47.98 |
|---|---|
| Average rating | 4.4 |
| 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 83% of Books categories: the median best seller has only 10 reviews, so new books can chart with few.
- Prices spread wide: the middle half runs from $12.99 to $47.98, so budget editions and premium or boxed sets sell side by side.
Top 10 Infinity best sellers
-
The Magic of Math: Solving for x and Figuring Out Why
- List rank#1
- Price$1.99
- Rating4.5
- Reviews397
-
Math Practice Workbook Grades 6-8: 1000+ Questions You Need to Kill in Middle School by Brain Hunter Prep (Arithmetic, Algebra, Geometry, Measurement, ... more in Kill It Series by Brain Hunter Prep)
by Brain Hunter Prep
- List rank#2
- Price$24.99
- Rating4.2
- Reviews1,492
-
Nothing: Surprising Insights Everywhere from Zero to Oblivion
by New Scientist
- List rank#3
- Price$8.99
- Rating4.3
- Reviews416
-
Everything and More: A Compact History of Infinity
- List rank#4
- Price$15.51
- Rating4.4
- Reviews279
-
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#5
- Price$6.99
- Rating4.2
- Reviews30
-
7th Grade Common Core Math: Daily Practice Workbook - Part I: Multiple Choice | 1000+ Practice Questions and Video Explanations | Argo Brothers (Next Generation Learning Standards Aligned (NGSS))
by Argo Brothers
- List rank#6
- Price$14.57
- Rating4.5
- Reviews912
-
Beyond Infinity: An Expedition to the Outer Limits of Mathematics
by Eugenia Cheng
- List rank#7
- Price$9.99
- Rating4.2
- Reviews227
-
Infinite Powers: How Calculus Reveals the Secrets of the Universe – A Revolutionary History from Ancient Greece to Modern Technology
- List rank#8
- Price$14.49
- Rating4.7
- Reviews2,539
-
The Missing Mathematician: A Mystery Elimination Puzzle Book for Adults. 100,800 Digits of Pi, 18 Clues and One Secret Cipher
by M.P. Marke
- List rank#9
- Price$12.34
- Rating5.0
- Reviews2
-
Sudoku Pocket Size Book Hard to Extreme: 200+ Travel Size Sudoku Puzzles Book for Adults Hard to Extreme with Solutions
by Epic Page
- List rank#10
- Price$6.99
- Rating4.5
- Reviews5
Same niche in Kindle eBooks: Infinity
FAQ
Is Infinity a good niche for Amazon KDP?
Its KDPTop opportunity score is 25/100, which makes it highly competitive. The median best seller has 10 reviews and sells for $19.99.
How many reviews do you need to rank in Infinity?
The median best seller has 10 reviews, and 88% of them have fewer than 100.
What do Infinity best sellers cost?
The median price is $19.99; half of the best sellers are priced between $12.99 and $47.98.
Can new books break into Infinity?
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.