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Sinan Kanbir: Amazon KDP author data
As of Nov 6, 2026, Sinan Kanbir has 30 books on Amazon, 15 of them on a best-seller list in the last 30 days (best rank #28), mostly in Math, Algebra, Arithmetic.
| Median price | $24.77 |
|---|---|
| Price range (middle 50%) | $19.99 – $25.24 |
| Median reviews | 3 |
| Total reviews | 166 |
| New books (30 days) | 10 |
| Breakout books (30 days) | 3 |
What stands out
- 50% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $24.77, 210% above the median of their main category, Math.
- 10 new books in the last 30 days, 3 of them broke into a Best Sellers list.
Sinan Kanbir's best-ranked books
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My Geometry Workbook & Notebook: Guided Practice, Worked Examples, and Space to Think
by Sinan Kanbir
- Price$28.10
- Reviews-
- Published2026-10
-
My Algebra 2 Workbook & Notebook: Guided Practice, Worked Examples, and Space to Think
by Sinan Kanbir
- Price$26.14
- Reviews-
-
GeoTopia 0.5: Essential Geometry Review and Workbook: Master Geometry for ACT, SAT, AMC, and State Exams (GeoTopia Books)
by Sinan Kanbir
- Price$29.50
- Rating4.6
- Reviews6
-
Bridge Math: Grade 6 to Grade 7: Fluency, Problem Solving, Puzzles, and Reflection
by Sinan Kanbir
- Price$24.99
- Rating5.0
- Reviews4
-
Bridge Math: Grade 7 to Grade 8: Fluency, Problem Solving, Puzzles, and Reflection
by Sinan Kanbir
- Price$24.99
- Rating5.0
- Reviews2
- Published2026-07
-
GeoTopia 0.5: Essential Geometry Review and Workbook: Master Geometry for ACT, SAT, AMC, and State Exams- Full Color Edition (GeoTopia Books)
by Sinan Kanbir
- Price$39.50
- Rating5.0
- Reviews2
-
Out of the Box Algebra: Developing Advanced Algebraic Skills Through Creative and Challenging Problems
by Sinan Kanbir
- Price$24.56
- Rating5.0
- Reviews9
- Published2022-08
-
My Algebra 1 Workbook & Notebook: Guided Practice, Worked Examples, and Space to Think
by Sinan Kanbir
- Price$24.99
- Reviews-
-
Middle School Mathematics Challenge: 10 Practice Tests for AMC 8-10, MATHCOUNTS®, MathCON, and Math Leagues Preparation
by Sinan Kanbir
- Price$22.80
- Rating4.2
- Reviews44
- Published2020-11
-
High School Mathematics Challenge: 10 Practice Tests for AMC 10-12 and Math Leagues Preparation
by Sinan Kanbir
- Price$24.99
- Rating4.4
- Reviews41
- Published2020-11
Main categories
FAQ
How many books does Sinan Kanbir have on Amazon?
KDPTop tracks 30 of their books; 15 made an Amazon list in the last 30 days.
Which categories does Sinan Kanbir publish in?
Their books chart most often in Math, Algebra, Arithmetic.
How does Sinan Kanbir price their books?
The median price is $24.77; half of the books cost $19.99–$25.24.
Has Sinan Kanbir released new books recently?
10 new books in the last 30 days, 3 of which reached a Best Sellers list.
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.