KDP categories · Top KDP authors
Regents (College & High School, Books): Amazon KDP category data
Amazon Books Best Sellers data for Regents (College & High School, Books), updated Nov 2, 2026: median price $19.99, median 18 reviews, average rating 4.5 and a KDPTop opportunity score of 34/100 (highly competitive).
| Price range (middle 50%) | $15.59 – $25.61 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 13% |
| Books on the list | 99 |
| Store | Books |
What stands out
- Its median reviews are 20% of the parent category College & High School (93), one of the easier corners under it.
- The same niche in Kindle eBooks scores 20, 13 points lower than here.
- 13% of its best sellers came out in the last 90 days, more than in 77% of Books categories: readers here keep buying new titles.
Top 10 Regents best sellers
-
Let's Review Regents: Geometry, Sixth Edition (Barron's New York Regents)
by Andre Ph.D. Castagna Ph.D.
- List rank#1
- Price$10.71
- Rating4.5
- Reviews74
-
Let's Review Regents: Algebra I, Fourth Edition (Barron's New York Regents)
by Gary M. Rubinstein M.S.
- List rank#2
- Price$20.88
- Rating4.6
- Reviews162
-
New York Regents Earth and Space Sciences 2026–2027: Master the New Exam Format with 2026 Revised ESSRT Training, Full-Length Practice Tests, Cluster Drills, Targeted Review, and Detailed Explanations
by ExamHarbor Press
- List rank#3
- Price$32.99
- Rating5.0
- Reviews16
-
Let's Review Regents: Algebra II, Fifth Edition (Barron's New York Regents)
by Gary M. Rubenstein M.S.
- List rank#4
- Price$12.61
- Rating4.9
- Reviews11
-
Regents Exams and Answers: Earth and Space Sciences (Barron's New York Regents)
by Barron's Educational Series
- List rank#5
- Price$16.82
- Rating4.1
- Reviews29
-
Regents Exams and Answers: Algebra I, Fourth Edition (Barron's New York Regents)
by Gary M. Rubinstein M.S.
- List rank#6
- Price$16.99
- Rating4.6
- Reviews261
-
Let's Review Regents: Chemistry--Physical Setting Revised Edition (Barron's New York Regents)
by Albert S. Tarendash M.S.
- List rank#7
- Price$18.99
- Rating4.4
- Reviews63
-
Regents Exams and Answers: Life Science: Biology, 1st Edition (Barron's New York Regents)
by Barron's Educational Series
- List rank#8
- Price$11.60
- Rating4.6
- Reviews131
-
Let's Review Regents: Algebra II Revised Edition (Barron's New York Regents)
by Gary M. Rubenstein M.S.
- List rank#9
- Price$18.99
- Rating4.6
- Reviews59
-
Regents Exams and Answers: Geometry, Sixth Edition (Barron's New York Regents)
by Andre Ph.D. Castagna Ph.D.
- List rank#10
- Price$17.70
- Rating4.6
- Reviews130
Same niche in Kindle eBooks: Regents
FAQ
Is Regents a good niche for Amazon KDP?
Its KDPTop opportunity score is 34/100, which makes it highly competitive. The median best seller has 18 reviews and sells for $19.99.
How many reviews do you need to rank in Regents?
The median best seller has 18 reviews, and 83% of them have fewer than 100.
What do Regents best sellers cost?
The median price is $19.99; half of the best sellers are priced between $15.59 and $25.61.
Can new books break into Regents?
13% 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.