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Joan Horvath: Amazon KDP author data
As of Nov 6, 2026, Joan Horvath has 17 books on Amazon, 10 of them on a best-seller list in the last 30 days (best rank #9), mostly in Geometry, 3D Printing, Calculus.
| Median price | $17.90 |
|---|---|
| Price range (middle 50%) | $14.99 – $33.99 |
| Median reviews | 8 |
| Total reviews | 238 |
| New books (30 days) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- 59% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $17.90, 53% below the median of their main category, Geometry.
Joan Horvath's best-ranked books
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Make: Geometry: Learn by coding, 3D printing and building
by Joan Horvath
- Price$17.08
- Rating4.5
- Reviews48
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Make: Trigonometry: Build your way from triangles to analytic geometry
by Joan Horvath
- Price$17.90
- Rating4.9
- Reviews15
-
Make: Geometry: Learn by coding, 3D printing and building
by Joan Horvath
- Price$16.23
- Rating4.5
- Reviews48
-
Make: Math Teacher's Supplement
by Joan Horvath
- Price$12.89
- Rating5.0
- Reviews3
-
Make: Trigonometry: Build your way from triangles to analytic geometry
by Joan Horvath
- Price$14.99
- Rating4.9
- Reviews15
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Make: Calculus: Build models to learn, visualize, and explore
by Joan Horvath
- Price$18.60
- Rating4.7
- Reviews53
-
Make: Math Teacher's Supplement
by Joan Horvath
- Price$8.99
- Rating5.0
- Reviews3
-
Make: Physics: Build projects to explore calculus-based mechanics
by Joan Horvath
- Price$33.36
- Rating5.0
- Reviews1
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3D Printed Science Projects Volume 1: Ideas for Your Classroom, Science Fair, or Home (Maker Innovations Series)
by Joan Horvath
- Price$48.17
- Reviews-
Main categories
FAQ
How many books does Joan Horvath have on Amazon?
KDPTop tracks 17 of their books; 10 made an Amazon list in the last 30 days.
Which categories does Joan Horvath publish in?
Their books chart most often in Geometry, 3D Printing, Calculus.
How does Joan Horvath price their books?
The median price is $17.90; half of the books cost $14.99–$33.99.
Has Joan Horvath released new books recently?
0 new books in the last 30 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.