KDP categories · Top KDP authors
Test Prep: Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Test Prep, updated Nov 2, 2026: median price $9.71, median 6 reviews, average rating 4.4 and a KDPTop opportunity score of 21/100 (highly competitive).
| Price range (middle 50%) | $4.99 – $10.74 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 14% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 14% of the parent category Study Aids (38), one of the easier corners under it.
- Its review barrier is lower than in 87% of Kindle eBooks categories: the median best seller has only 6 reviews, so new books can chart with few.
Top 10 Test Prep best sellers
-
Everything You Need to Ace Algebra 2 in One Big Fat Notebook
- List rank#1
- Price$11.99
- Rating4.7
- Reviews328
-
The Driving Book for Teens: A Complete Guide to Becoming a Safe, Smart, and Skilled Driver
by Maureen Stiles
- List rank#2
- Price$3.99
- Rating4.7
- Reviews1,333
-
AP Computer Science Principles: Full-Length Practice Tests (Tests 1–6) Six Full-Length Practice Tests and Step-by-Step Solutions (AP Computer Science Series Book 4)
by Dan Edwards
- List rank#3
- Price$12.99
- Reviews-
-
GED Test Prep Plus, Tenth Edition (2026): Includes a Diagnostic Pretest, 2 Full Length Practice Tests, 1000+ Practice Questions, and 60+ Online Videos (Kaplan Test Prep)
- List rank#4
- Price$20.99
- Rating4.7
- Reviews2,808
-
SAT Study Guide Premium, 2027: 3 Practice Tests + Comprehensive Review + Online Practice and Video Lessons (Barron's SAT Prep)
by Brian W. Stewart M.Ed.
- List rank#5
- Price$12.99
- Rating4.5
- Reviews70
-
10th Grade All Subjects Workbook: Complete Curriculum for Math, Science, History, and Language Arts with Extra Practice Worksheets for Academic Success (All in one Academic Mastery Book 4)
by Lucy M. Rayford
- List rank#6
- Price$7.99
- Rating4.8
- Reviews11
-
The Amoeba Sisters' Cartoon Guide to Biology (Science with the Amoeba Sisters)
by Sarina Peterson
- List rank#7
- Price$12.99
- Rating4.7
- Reviews175
-
8th Grade Algebra 1 Study Guide & Practice Workbook: Master Algebra with Clear Lessons, Step-by-Step Examples, Practice Problems, Quizzes, Tests, and ... for Ages 13–14 (Math Foundations Unlocked)
by MARCUS C. HUNTER
- List rank#8
- Price$5.99
- Reviews-
-
English Language and Literature A Paper 1: Analysing Unseen Texts : An independent study companion for students preparing for international pre-university diploma frame (The English Scholar Book 6)
by Aidan Smyth
- List rank#9
- Price$9.99
- Reviews-
-
SAT Math Workbook: 2,500 fast practice problems designed to ensure you understand the SAT inside out (SAT Math prep 2017/2018)
by Ryan Ofman
- List rank#10
- Price$1.99
- Rating3.8
- Reviews6
FAQ
Is Test Prep a good niche for Amazon KDP?
Its KDPTop opportunity score is 21/100, which makes it highly competitive. The median best seller has 6 reviews and sells for $9.71.
How many reviews do you need to rank in Test Prep?
The median best seller has 6 reviews, and 80% of them have fewer than 100.
What do Test Prep best sellers cost?
The median price is $9.71; half of the best sellers are priced between $4.99 and $10.74.
Can new books break into Test Prep?
14% 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.