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Trigonometry (Mathematics, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Trigonometry (Mathematics, Kindle eBooks), updated Nov 2, 2026: median price $7.97, median 8 reviews, average rating 4.4 and a KDPTop opportunity score of 25/100 (highly competitive).
| Price range (middle 50%) | $3.99 – $12.99 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 10% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 3% of the parent category Mathematics (286), one of the easier corners under it.
- Its review barrier is lower than in 84% of Kindle eBooks categories: the median best seller has only 8 reviews, so new books can chart with few.
- Prices spread wide: the middle half runs from $3.99 to $12.99, so budget editions and premium or boxed sets sell side by side.
Top 10 Trigonometry best sellers
-
The Magic of Math: Solving for x and Figuring Out Why
- List rank#1
- Price$1.99
- Rating4.5
- Reviews397
-
Trigonometry Essentials Practice Workbook with Answers: Master Basic Trig Skills (Improve Your Math Fluency)
- List rank#2
- Price$4.99
- Rating4.6
- Reviews946
-
Learn or Review Trigonometry: Essential Skills (Step-by-Step Math Tutorials)
- List rank#3
- Price$4.99
- Rating4.3
- Reviews73
-
Trig Identities Practice Workbook with Answers
- List rank#4
- Price$5.99
- Rating4.7
- Reviews227
-
Trigonometry: A Complete Introduction: The Easy Way to Learn Trig (Teach Yourself)
by Hugh Neill
- List rank#5
- Price$4.99
- Rating4.5
- Reviews350
-
Love Triangle: How Trigonometry Shapes the World
by Matt Parker
- List rank#6
- Price$12.99
- Rating4.5
- Reviews224
-
AMC 10 & 12 MASTERY: 300 Problems with Step-by-Step Solutions Covering Algebra, Geometry, Number Theory, and Counting & Probability
by Ariel R. Pen
- List rank#7
- Price$7.99
- Rating4.6
- Reviews18
-
Foundation Mathematics: Concepts, Theory, and Problems for School and Competitive Exams (Mastering Mathematics)
- List rank#8
- Price$0.99
- Reviews-
-
Trigonometry (Mathematics and Statistics)
by I.M. Gelfand
- List rank#9
- Price$19.24
- Rating4.3
- Reviews76
-
Trigonometry for Normal People: a step-by-step guide (no skipped steps) (Mathematics for Normal People Book 3)
by Gabriel Beguerie
- List rank#10
- Price$4.99
- Rating3.0
- Reviews2
Same niche in Books: Trigonometry
FAQ
Is Trigonometry a good niche for Amazon KDP?
Its KDPTop opportunity score is 25/100, which makes it highly competitive. The median best seller has 8 reviews and sells for $7.97.
How many reviews do you need to rank in Trigonometry?
The median best seller has 8 reviews, and 81% of them have fewer than 100.
What do Trigonometry best sellers cost?
The median price is $7.97; half of the best sellers are priced between $3.99 and $12.99.
Can new books break into Trigonometry?
10% 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.