KDP categories · Top KDP authors
CLEP (Test Preparation, Books): Amazon KDP category data
Amazon Books Best Sellers data for CLEP (Test Preparation, Books), updated Nov 2, 2026: median price $29.98, median 15 reviews, average rating 4.4 and a KDPTop opportunity score of 31/100 (highly competitive).
| Price range (middle 50%) | $19.99 – $34.95 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 5% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 8% of the parent category Test Preparation (179), one of the easier corners under it.
- At $29.98 its median price beats 88% of Books categories, leaving more margin per copy.
- Its review barrier is lower than in 77% of Books categories: the median best seller has only 15 reviews, so new books can chart with few.
Top 10 CLEP best sellers
-
CLEP® Introductory Psychology Book + Online (CLEP Test Preparation)
by Don J. Sharpsteen Ph.D.
- List rank#1
- Price$22.84
- Rating4.5
- Reviews357
-
CLEP® History of the U.S. I Book + Online (CLEP Test Preparation)
by Editors of REA
- List rank#2
- Price$32.01
- Rating4.4
- Reviews223
-
CLEP® American Government Book + Online (CLEP Test Preparation)
by Preston Jones Ph.D.
- List rank#3
- Price$34.95
- Rating4.5
- Reviews181
-
CLEP® Biology Book + Online (CLEP Test Preparation)
by Laurie Ann Callihan Ph.D.
- List rank#4
- Price$25
- Rating4.4
- Reviews234
-
CLEP® College Algebra Book + Online (CLEP Test Preparation)
by Stu Schwartz
- List rank#5
- Price$32.57
- Rating4.3
- Reviews309
-
CLEP® Human Growth & Development, 10th Ed., Book + Online (CLEP Test Preparation)
by Dr. Norman Rose
- List rank#6
- Price$33.20
- Rating4.5
- Reviews103
-
CLEP® College Composition 2nd Ed., Book + Online (CLEP Test Preparation)
by Rachelle Smith
- List rank#7
- Price$32.34
- Rating4.4
- Reviews216
-
CLEP® College Mathematics, 4th Ed., Book + Online (CLEP Test Preparation)
by Stu Schwartz
- List rank#8
- Price$32.79
- Rating4.4
- Reviews179
-
CLEP® Spanish Language: Levels 1 and 2 (Book + Online) (CLEP Test Preparation) (English and Spanish Edition)
by Ms. Lisa J. Goldman
- List rank#9
- Price$31
- Rating4.4
- Reviews264
-
CLEP® Precalculus (CLEP Test Preparation)
by Betty Travis PhD
- List rank#10
- Price$28.69
- Rating4.0
- Reviews69
FAQ
Is CLEP a good niche for Amazon KDP?
Its KDPTop opportunity score is 31/100, which makes it highly competitive. The median best seller has 15 reviews and sells for $29.98.
How many reviews do you need to rank in CLEP?
The median best seller has 15 reviews, and 80% of them have fewer than 100.
What do CLEP best sellers cost?
The median price is $29.98; half of the best sellers are priced between $19.99 and $34.95.
Can new books break into CLEP?
5% 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.