KDP categories · Top KDP authors
Set Theory (Pure Mathematics, Books): Amazon KDP category data
Amazon Books Best Sellers data for Set Theory (Pure Mathematics, Books), updated Nov 2, 2026: median price $20.77, median 18 reviews, average rating 4.4 and a KDPTop opportunity score of 26/100 (highly competitive).
| Price range (middle 50%) | $12.95 – $54.44 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 8% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 2% of the parent category Pure Mathematics (743), one of the easier corners under it.
- Its review barrier is lower than in 75% of Books categories: the median best seller has only 18 reviews, so new books can chart with few.
- Prices spread wide: the middle half runs from $12.95 to $54.44, so budget editions and premium or boxed sets sell side by side.
Top 10 Set Theory best sellers
-
Matched with a Killer: A Murder Mystery Puzzle Book: Suspect Elimination Puzzle
by Erik Björnberg
- List rank#1
- Price$12.98
- Rating4.8
- Reviews5
-
Journey to the Edge of Reason: The Life of Kurt Gödel
by Stephen Budiansky
- List rank#2
- Price$18.90
- Rating4.5
- Reviews493
-
Timed Tests: Multiplication Math Drills, Practice 100 days of speed drills: Digits 0-12, Grades 3-5
- List rank#3
- Price$9.99
- Rating4.8
- Reviews1,075
-
Everything and More: A Compact History of Infinity
- List rank#4
- Price$15.51
- Rating4.4
- Reviews279
-
Naive Set Theory (Dover Books on Mathematics)
by Paul R. Halmos
- List rank#5
- Price$12.95
- Rating4.5
- Reviews161
-
The Philosophy of Set Theory: An Historical Introduction to Cantor's Paradise (Dover Books on Mathematics);An;Dover Books on Mathematics
by Mary Tiles
- List rank#6
- Price$8.80
- Rating4.6
- Reviews45
-
LogicMines: 80 Murder Mystery Cases for Adults - Murder Puzzles for Deductive Minds - Easy to Expert, Full Solutions Included
by Ginny Riddle
- List rank#7
- Price$14.99
- Reviews-
-
Naive Set Theory
by Paul R Halmos
- List rank#8
- Price$6
- Rating4.6
- Reviews149
-
Set Theory and the Continuum Hypothesis (Dover Books on Mathematics)
by Paul J. Cohen
- List rank#9
- Price$10.91
- Rating4.5
- Reviews73
-
Introduction to Hilbert Spaces with Applications
by Lokenath Debnath
- List rank#10
- Price$72.20
- Rating4.6
- Reviews24
Same niche in Kindle eBooks: Set Theory
FAQ
Is Set Theory a good niche for Amazon KDP?
Its KDPTop opportunity score is 26/100, which makes it highly competitive. The median best seller has 18 reviews and sells for $20.77.
How many reviews do you need to rank in Set Theory?
The median best seller has 18 reviews, and 86% of them have fewer than 100.
What do Set Theory best sellers cost?
The median price is $20.77; half of the best sellers are priced between $12.95 and $54.44.
Can new books break into Set Theory?
8% 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.