KDP categories · Top KDP authors
Research (Medicine & Health Sciences, Books): Amazon KDP category data
Amazon Books Best Sellers data for Research (Medicine & Health Sciences, Books), updated Nov 2, 2026: median price $45, median 22 reviews, average rating 4.5 and a KDPTop opportunity score of 35/100 (highly competitive).
| Price range (middle 50%) | $28 – $76.48 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 6% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 6% of the parent category Medicine & Health Sciences (354), one of the easier corners under it.
- At $45 its median price beats 95% of Books categories, leaving more margin per copy.
- Its review barrier is lower than in 72% of Books categories: the median best seller has only 22 reviews, so new books can chart with few.
Top 10 Research best sellers
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![ACT Study Guide & Test Prep [2 in 1]: The Ultimate All-in-One Study System to Ace the ACT book cover by Quantum Prep Publishing](https://images-na.ssl-images-amazon.com/images/I/61oiHrw8WPL._AC_UL300_SR300,200_.jpg)
ACT Study Guide & Test Prep [2 in 1]: The Ultimate All-in-One Study System to Ace the ACT with Exam-Ready Practice Questions, Full-Length Practice Tests, and Easy-to-Follow Explanations
- List rank#1
- Price$35.75
- Rating4.8
- Reviews507
-
Spillover: Animal Infections and the Next Human Pandemic
- List rank#2
- Price$11.48
- Rating4.7
- Reviews4,924
-
Qualitative Research: A Guide to Design and Implementation
by Elizabeth J. Tisdell
- List rank#3
- Price$41.96
- Rating4.8
- Reviews40
-
The Premonition: A Pandemic Story
- List rank#4
- Price$10.65
- Rating4.6
- Reviews18,720
-
Chimp & the River: How AIDS Emerged from an African Forest
- List rank#5
- Price$11.48
- Rating4.6
- Reviews441
-
Wound Care Made Visual: A Full-Color Clinical Atlas and Illustrated Guide for Nurses and Healthcare Professionals (Starr Clinical Press Made Visual)
by Linda Starr
- List rank#6
- Price$29.99
- Reviews-
-
Clinical Biostatistics and Epidemiology Made Ridiculously Simple: Color Edition
- List rank#7
- Price$24.95
- Rating4.5
- Reviews398
-
LCSW Study Guide: The Pattern Recognition System that Clarifies Tricky ASWB Questions and Equips You for Real Exam Challenges
by Summit SG
- List rank#8
- Price$33
- Rating4.3
- Reviews288
-
The Model Thinker: What You Need to Know to Make Data Work for You
- List rank#9
- Price$20.45
- Rating4.5
- Reviews574
-
Functional Data Analysis with R and MATLAB (Use R!)
by James Ramsay
- List rank#10
- Price$65.54
- Rating4.5
- Reviews9
Subcategories
FAQ
Is Research a good niche for Amazon KDP?
Its KDPTop opportunity score is 35/100, which makes it highly competitive. The median best seller has 22 reviews and sells for $45.
How many reviews do you need to rank in Research?
The median best seller has 22 reviews, and 75% of them have fewer than 100.
What do Research best sellers cost?
The median price is $45; half of the best sellers are priced between $28 and $76.48.
Can new books break into Research?
6% 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.