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Instruments & Supplies (Medical Books › Reference, Books): Amazon KDP category data
Amazon Books Best Sellers data for Instruments & Supplies (Medical Books › Reference, Books), updated Nov 2, 2026: median price $19.98, median 16 reviews, average rating 4.4 and a KDPTop opportunity score of 25/100 (highly competitive).
| Price range (middle 50%) | $10.99 – $38.29 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 11% |
| Books on the list | 99 |
| Store | Books |
What stands out
- Its median reviews are 5% of the parent category Reference (323), one of the easier corners under it.
- Its review barrier is lower than in 76% of Books categories: the median best seller has only 16 reviews, so new books can chart with few.
- Prices spread wide: the middle half runs from $10.99 to $38.29, so budget editions and premium or boxed sets sell side by side.
Top 10 Instruments & Supplies best sellers
-
Alton's Antibiotics and Infectious Disease: The Layman's Guide to Available Antibacterials in Austere Settings
by Joseph Alton MD
- List rank#1
- Price$23.69
- Rating4.8
- Reviews863
-
Sterile Processing: A Comprehensive Guide: For Classroom and Certification Exam Preparation
by Michael Luciano
- List rank#2
- Price$7.99
- Rating3.8
- Reviews46
-
Medical Terminology Made Easy Coloring Book: Master Medical Terms Through Interactive Coloring, Word Building, Memory Aids, Pronunciation Tips, Practice Questions, and Clinical Applications
by Patrick Crouch
- List rank#3
- Price$9.99
- Rating3.5
- Reviews27
-
NHA Phlebotomy Study Guide: The Complete and Up-to-Date Prep Book to Pass the NHA CPT® Exam | Exam-Style Questions and Full-Length Practice Tests—For Students Who Don’t Have Time to Waste
by Clinical Bridge Exam Prep
- List rank#4
- Price$29.90
- Rating4.9
- Reviews49
-
The Prepper's Survival Natural Medicine: The Emergency Preparedness Manual You Need for When There is No Doctor, With Essential Knowledge in Critical First Aid, Life-Saving Herbs and Natural Remedies
by Raymond L. Hillman
- List rank#5
- Price$14.99
- Rating4.4
- Reviews253
-
Introduction to Medical Equipment Repair: A Practical Handbook for Biomedical Technicians
by Frank Weithöner
- List rank#6
- Price$38.66
- Rating4.6
- Reviews26
-
Sterile Processing Technician Workbook & Coloring Book: Interactive Medical Illustrations, Knowledge Checks, Case Scenarios, and Exam Review
by Randy W. Hall
- List rank#7
- Price$14.99
- Rating5.0
- Reviews5
-
The Prepper's Survival Natural Medicine: The Handbook you need When There is no Doctor. With Essential Knowledge about Herbs and Plants to grow and use for Essential Oils and Natural Remedies
by John Wiseman
- List rank#8
- Price$1.99
- Rating4.7
- Reviews39
-
Medical Terminology Coloring Book for Beginners: Learn the Foundations of Anatomy and Medical Terminology with Fun Coloring Exercises Featuring Word Roots, Prefixes, Suffixes, and Clinical Terms
by Clement C. Smith
- List rank#9
- Price$13.99
- Reviews-
-
Sterile Processing Technician Certification Study Guide: CRCST Exam Prep - Complete Review, 600+ Practice Questions & Explained Answers, 3 Mock Exams, Illustrated
by Diane R Whitfield
- List rank#10
- Price$9.99
- Reviews-
FAQ
Is Instruments & Supplies a good niche for Amazon KDP?
Its KDPTop opportunity score is 25/100, which makes it highly competitive. The median best seller has 16 reviews and sells for $19.98.
How many reviews do you need to rank in Instruments & Supplies?
The median best seller has 16 reviews, and 84% of them have fewer than 100.
What do Instruments & Supplies best sellers cost?
The median price is $19.98; half of the best sellers are priced between $10.99 and $38.29.
Can new books break into Instruments & Supplies?
11% 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.