KDP categories · Top KDP authors
Transportation (Medicine, Books): Amazon KDP category data
Amazon Books Best Sellers data for Transportation (Medicine, Books), updated Nov 3, 2026: median price $24.97, median 8 reviews, average rating 4.4 and a KDPTop opportunity score of 25/100 (highly competitive).
| Price range (middle 50%) | $13.82 – $35.99 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 11% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 0% of the parent category Medicine (2,999), one of the easier corners under it.
- Its review barrier is lower than in 85% of Books categories: the median best seller has only 8 reviews, so new books can chart with few.
- At $24.97 its median price beats 84% of Books categories, leaving more margin per copy.
Top 10 Transportation best sellers
-
NREMT Study Guide: Complete Review + 2040 Questions and Detailed Answer Explanations for the EMT Exam (Exam Simulator + E-Learning Access)
by Newstone TP
- List rank#1
- Price$24.99
- Rating4.8
- Reviews198
-
-
-
-
-
NREMT Study Guide: The Complete EMT Exam Prep System with Practice Questions, Full-Length Tests & Exam Simulator | Built for Today’s Exam—Perform at Your Best on the First Try
by Bridge Exam Prep
- List rank#6
- Price$24.97
- Rating5.0
- Reviews27
-
How To Start, Run, & Grow A Medical Courier Business: The Complete Step-by-Step Guide to Landing Clients, Securing Contracts, Increasing Income, and Reliable Enterprise
by Adrian A. Westbrook
- List rank#7
- Price$13.99
- Rating4.8
- Reviews7
-
C-NPT STUDY GUIDE 2026–2027: Certified in Neonatal–Pediatric Transport Exam Prep with Comprehensive Content Review, 750 Practice Questions, and a Full-Length Mock Test
by Studysmart Mastery
- List rank#8
- Price$30.97
- Rating5.0
- Reviews4
-
Ventilator Management: A Critical Care Perspective: Applied Physiology and Clinical Strategy for Air and Ground Transport
by Eric R Bauer
- List rank#9
- Price$38.51
- Rating5.0
- Reviews1
-
C-NPT STUDY GUIDE 2026-2027: 900 Scenario-Based Practice Questions, Detailed Answer Explanations, Critical Care Transport Stabilization Strategies, ... for the Neonatal Pediatric Transport Exam
by CERTISPHERE PUBLICATIONS
- List rank#10
- Price$29.50
- Rating5.0
- Reviews4
FAQ
Is Transportation a good niche for Amazon KDP?
Its KDPTop opportunity score is 25/100, which makes it highly competitive. The median best seller has 8 reviews and sells for $24.97.
How many reviews do you need to rank in Transportation?
The median best seller has 8 reviews, and 88% of them have fewer than 100.
What do Transportation best sellers cost?
The median price is $24.97; half of the best sellers are priced between $13.82 and $35.99.
Can new books break into Transportation?
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.