KDP categories · Top KDP authors
Prep School (College & High School, Books): Amazon KDP category data
Amazon Books Best Sellers data for Prep School (College & High School, Books), updated Nov 3, 2026: median price $27.99, median 21 reviews, average rating 4.4 and a KDPTop opportunity score of 28/100 (highly competitive).
| Price range (middle 50%) | $22.67 – $31.92 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 19% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 23% of the parent category College & High School (93), one of the easier corners under it.
- 19% of its best sellers came out in the last 90 days, more than in 89% of Books categories: readers here keep buying new titles.
- At $27.99 its median price beats 87% of Books categories, leaving more margin per copy.
Top 10 Prep School best sellers
-
HSPT Exam Prep for Catholic High Schools: The Complete Study Guide to Top Scores! Boost Confidence with Proven Strategies, Full-Length Practice Tests & Smart Reviews | Includes Online Test Simulator
by Revo Prep
- List rank#1
- Price$31.97
- Rating4.7
- Reviews248
-
SSAT Upper Level Test Prep: The Complete Prep System to Master the SSAT Upper Level | Includes a Digital Platform with Realistic, Timed Full-Length Tests and Targeted Practice
- List rank#2
- Price$38.59
- Rating5.0
- Reviews114
-
HSPT Study Guide: The Complete Prep System for the Catholic High School Placement Test | Exam-Style Questions, Full-Length Tests & Exam Simulator—For Students Who Don’t Have Time to Waste
by EXAM SUCCESS ACADEMY
- List rank#3
- Price$31.90
- Rating4.8
- Reviews160
-
GED Total Test Prep: The Complete & Up-to-Date Study Guide to ACE the GED Exam and Achieve Your Best Score. Step-by-Step Guidance, Practice That Works, Proven Expert Tips
- List rank#4
- Price$29.73
- Rating4.4
- Reviews753
-
GED Test Prep: The Complete and Fully Updated Prep Book to Ace the GED Exam with Exam-Ready Practice Tests and Easy-to-Follow Explanations
- List rank#5
- Price$29.72
- Rating4.4
- Reviews519
-
Upper Level ISEE: 1500+ Practice Questions
by The Tutorverse
- List rank#6
- Price$39.99
- Rating4.5
- Reviews280
-
Middle Level ISEE: 1000+ Practice Questions
by The Tutorverse
- List rank#7
- Price$38.99
- Rating4.3
- Reviews188
-
HSPT Prep Book 2026-2027 - 2 Full-Length Practice Tests, 225+ Online Video Tutorials, Secrets Study Guide for the Catholic High School Placement Test: [6th Edition]
- List rank#8
- Price$26.99
- Rating4.9
- Reviews13
-
ISEE Upper Level: 2500+ Practice Questions
by Elevate Prep
- List rank#9
- Price$38.91
- Rating4.4
- Reviews100
-
TSI Study Guide: 20 Full-Length Online Exam Simulations, 3,000+ Practice Questions, and Step-by-Step Explanations — Fully Updated for TSIA2, for Students Who Don’t Have Time to Waste
by CLEAR Thinking Guides
- List rank#10
- Price$29.99
- Rating4.7
- Reviews190
Same niche in Kindle eBooks: Prep School
FAQ
Is Prep School a good niche for Amazon KDP?
Its KDPTop opportunity score is 28/100, which makes it highly competitive. The median best seller has 21 reviews and sells for $27.99.
How many reviews do you need to rank in Prep School?
The median best seller has 21 reviews, and 80% of them have fewer than 100.
What do Prep School best sellers cost?
The median price is $27.99; half of the best sellers are priced between $22.67 and $31.92.
Can new books break into Prep School?
19% 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.