KDP categories · Top KDP authors
Research (Reference, Books): Amazon KDP category data
Amazon Books Best Sellers data for Research (Reference, Books), updated Nov 2, 2026: median price $24.99, median 6 reviews, average rating 4.5 and a KDPTop opportunity score of 26/100 (highly competitive).
| Price range (middle 50%) | $17.95 – $36 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 16% |
| Books on the list | 99 |
| Store | Books |
What stands out
- Its median reviews are 1% of the parent category Reference (1,115), one of the easier corners under it.
- Its review barrier is lower than in 88% of Books categories: the median best seller has only 6 reviews, so new books can chart with few.
- 16% of its best sellers came out in the last 90 days, more than in 85% of Books categories: readers here keep buying new titles.
Top 10 Research best sellers
-
Kobuk the Destroyer: And Other Tales from the Wild, Unseen World of Test Engineering
by Alex Davies
- List rank#1
- Price$29.85
- Rating4.5
- Reviews16
-
The Art of Doing Science and Engineering: Learning to Learn
by Richard Hamming
- List rank#2
- Price$31.81
- Rating4.6
- Reviews1,322
-
The Model Thinker: What You Need to Know to Make Data Work for You
- List rank#3
- Price$1.99
- Rating4.5
- Reviews574
-
The Power of One: How I Found the Strength to Tell the Truth and Why I Blew the Whistle on Facebook
by Frances Haugen
- List rank#4
- Price$14.99
- Rating4.1
- Reviews155
-
The Pentagon's Brain: An Uncensored History of DARPA, America's Top-Secret Military Research Agency
- List rank#5
- Price$12.99
- Rating4.5
- Reviews2,379
-
Bitten: The Secret History of Lyme Disease and Biological Weapons
by Kris Newby
- List rank#6
- Price$12.91
- Rating4.7
- Reviews1,267
-
Hands of Time: A Watchmaker's History ― An Award-Winning Craftsman's Account of How We Learned to Measure Time
by Rebecca Struthers
- List rank#7
- Price$28.40
- Rating4.6
- Reviews661
-
-
Handbook of Systems Engineering Principles And Modern Practice: A Comprehensive Guide to Requirements Analysis, Model-Based Systems Engineering, ... for Students and Practitioners — New Edition
by Warren Kessler
- List rank#9
- Price$39.55
- Rating5.0
- Reviews9
-
The Watch Repairer's Manual
by Henry B. Fried
- List rank#10
- Price$24.72
- Rating4.7
- Reviews310
FAQ
Is Research a good niche for Amazon KDP?
Its KDPTop opportunity score is 26/100, which makes it highly competitive. The median best seller has 6 reviews and sells for $24.99.
How many reviews do you need to rank in Research?
The median best seller has 6 reviews, and 87% of them have fewer than 100.
What do Research best sellers cost?
The median price is $24.99; half of the best sellers are priced between $17.95 and $36.
Can new books break into Research?
16% 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.