KDP categories · Top KDP authors
Cardiology (Clinical, Books): Amazon KDP category data
Amazon Books Best Sellers data for Cardiology (Clinical, Books), updated Nov 2, 2026: median price $60.79, median 24 reviews, average rating 4.5 and a KDPTop opportunity score of 38/100 (highly competitive).
| Price range (middle 50%) | $44.87 – $101 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 13% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 8% of the parent category Clinical (312), one of the easier corners under it.
- At $60.79 its median price beats 97% of Books categories, leaving more margin per copy.
- Its review barrier is lower than in 70% of Books categories: the median best seller has only 24 reviews, so new books can chart with few.
Top 10 Cardiology best sellers
-
Rapid Interpretation of EKG's, Sixth Edition
by Dale Dubin
- List rank#1
- Price$59.89
- Rating4.8
- Reviews4,969
-
Pathophysiology of Heart Disease: An Introduction to Cardiovascular Medicine
by Leonard S. Lilly MD
- List rank#2
- Price$58.85
- Rating4.9
- Reviews20
-
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#3
- Price$24.99
- Rating4.8
- Reviews198
-
The S.T.A.B.L.E. Program Learner Manual: Post-resuscitation/Pre-transport Stabilization Care of Sick Infants: Guidelines for Neonatal Caregivers
by Dr. Kristine A. Karlsen PhD APRN NNP-BC FAAN
- List rank#4
- Price$60.49
- Rating4.9
- Reviews82
-
The Only EKG Book You'll Ever Need Print + eBook with Multimedia
by MALCOLM S. THALER
- List rank#5
- Price$76.22
- Rating3.9
- Reviews8
-
Braunwald’s Heart Disease, 2-Volume Set: A Textbook of Cardiovascular Medicine
by Robert O. Bonow MD MS
- List rank#6
- Price$273
- Rating4.4
- Reviews40
-
Manual of Perioperative Care in Adult Cardiac Surgery
by Robert M. Bojar
- List rank#7
- Price$47.94
- Rating4.8
- Reviews305
-
ECG Workout: Exercises in Arrhythmia Interpretation
by LOREDA J. HUFF
- List rank#8
- Price$65.22
- Rating4.7
- Reviews157
-
Nuclear Cardiology Review: Print + eBook with Multimedia: A Self-Assessment Tool
by WAEL A. JABER
- List rank#9
- Price$86.98
- Rating4.8
- Reviews7
-
ECGs Made Easy
by Barbara J. Aehlert MSEd BSPA RN
- List rank#10
- Price$63.21
- Rating4.7
- Reviews96
FAQ
Is Cardiology a good niche for Amazon KDP?
Its KDPTop opportunity score is 38/100, which makes it highly competitive. The median best seller has 24 reviews and sells for $60.79.
How many reviews do you need to rank in Cardiology?
The median best seller has 24 reviews, and 81% of them have fewer than 100.
What do Cardiology best sellers cost?
The median price is $60.79; half of the best sellers are priced between $44.87 and $101.
Can new books break into Cardiology?
13% 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.