KDP categories · Top KDP authors
Abstract (Algebra, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Abstract (Algebra, Kindle eBooks), updated Nov 2, 2026: median price $31.35, median 6 reviews, average rating 4.4 and a KDPTop opportunity score of 27/100 (highly competitive).
| Price range (middle 50%) | $9.84 – $49.03 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 3% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 8% of the parent category Algebra (73), one of the easier corners under it.
- At $31.35 its median price beats 99% of Kindle eBooks categories, leaving more margin per copy.
- Only 3% of its best sellers are under 90 days old, fewer than in 88% of Kindle eBooks categories: established titles hold the list.
Top 10 Abstract best sellers
-
A Concrete Approach to Abstract Algebra (Dover Books on Mathematics)
by W. W. Sawyer
- List rank#1
- Price$9.99
- Rating4.6
- Reviews25
-
Matrix Analysis
by Roger A. Horn
- List rank#2
- Price$38
- Rating4.4
- Reviews105
-
A Book of Abstract Algebra: Second Edition
by Charles C. Pinter
- List rank#3
- Price$6.49
- Rating4.5
- Reviews594
-
Representation Theory of Finite Groups: An Introductory Approach (Universitext)
by Benjamin Steinberg
- List rank#4
- Price$43.98
- Rating3.8
- Reviews14
-
Elements of Abstract Algebra (Dover Books on Mathematics)
by Allan Clark
- List rank#5
- Price$9.99
- Rating4.4
- Reviews70
-
Math Without Numbers
by Milo Beckman
- List rank#6
- Price$4.99
- Rating4.4
- Reviews393
-
Category Theory in Context (Aurora: Dover Modern Math Originals)
by Emily Riehl
- List rank#7
- Price$16.17
- Rating4.7
- Reviews182
-
Abstract Algebra: An Introductory Course (Springer Undergraduate Mathematics Series)
by Gregory T. Lee
- List rank#8
- Price$19.24
- Rating4.4
- Reviews25
-
Galois' Theory Of Algebraic Equations (Second Edition): 2nd Edition
by Jean-pierre Tignol
- List rank#9
- Price$18.53
- Rating4.8
- Reviews5
-
Elliptic Tales: Curves, Counting, and Number Theory
by Avner Ash
- List rank#10
- Price$9.68
- Rating4.4
- Reviews116
Same niche in Books: Abstract
FAQ
Is Abstract a good niche for Amazon KDP?
Its KDPTop opportunity score is 27/100, which makes it highly competitive. The median best seller has 6 reviews and sells for $31.35.
How many reviews do you need to rank in Abstract?
The median best seller has 6 reviews, and 92% of them have fewer than 100.
What do Abstract best sellers cost?
The median price is $31.35; half of the best sellers are priced between $9.84 and $49.03.
Can new books break into Abstract?
3% 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.