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Gary M Rubinstein M S: Amazon KDP author data
As of Nov 6, 2026, Gary M Rubinstein M S has 14 books on Amazon, 8 of them on a best-seller list in the last 30 days (best rank #1), mostly in Regents, Algebra & Trigonometry, Mathematics.
| Median price | $14.01 |
|---|---|
| Price range (middle 50%) | $11.35 – $20.88 |
| Median reviews | 162 |
| Total reviews | 2,152 |
| New books (30 days) | 2 |
| Breakout books (30 days) | 2 |
What stands out
- 57% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $14.01, 30% below the median of their main category, Regents.
Gary M Rubinstein M S's best-ranked books
-
Let's Review Regents: Algebra I, Fourth Edition (Barron's New York Regents)
by Gary M Rubinstein M S
- Price$20.87
- Rating4.6
- Reviews162
- Published2024-01
-
Let's Review Regents: Algebra I Revised Edition (Barron's New York Regents)
by Gary M Rubinstein M S
- Price$8.99
- Rating4.6
- Reviews162
-
Regents Exams and Answers: Algebra I, Fourth Edition (Barron's New York Regents)
by Gary M Rubinstein M S
- Price$16.99
- Rating4.6
- Reviews261
- Published2024-01
-
Regents Exams and Answers Algebra I Revised Edition (Barron's New York Regents)
by Gary M Rubinstein M S
- Price$5.99
- Rating4.6
- Reviews261
-
Regents Exams and Answers: Algebra I, Fifth Edition, (Barron's New York Regents)
by Gary M Rubinstein M S
- Price$16.99
- Reviews-
- Published2026-11
-
Let's Review Regents: Algebra I, Fifth Edition (Barron's New York Regents)
by Gary M Rubinstein M S
- Price$20.89
- Reviews-
- Published2026-11
-
Let's Review Algebra I (Barron's Regents NY)
by Gary M Rubinstein M S
- Price$13.05
- Rating4.5
- Reviews255
- Published2015-01
-
Regents Algebra II Power Pack Revised Edition (Barron's New York Regents)
by Gary M Rubinstein M S
- Price$11.99
- Rating4.3
- Reviews48
-
Regents Exams and Answers: Algebra I (Barron's Regents NY)
by Gary M Rubinstein M S
- Price$11.35
- Rating4.6
- Reviews404
-
Regents Algebra I Power Pack: Let's Review Algebra I + Regents Exams and Answers: Algebra I (Barron's Regents NY)
by Gary M Rubinstein M S
- Price-
- Rating4.6
- Reviews172
- Published2017-11
Main categories
FAQ
How many books does Gary M Rubinstein M S have on Amazon?
KDPTop tracks 14 of their books; 8 made an Amazon list in the last 30 days.
Which categories does Gary M Rubinstein M S publish in?
Their books chart most often in Regents, Algebra & Trigonometry, Mathematics.
How does Gary M Rubinstein M S price their books?
The median price is $14.01; half of the books cost $11.35–$20.88.
Has Gary M Rubinstein M S released new books recently?
2 new books in the last 30 days, 2 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.