KDP categories · Top KDP authors
Pulmonary (Internal Medicine, Books): Amazon KDP category data
Amazon Books Best Sellers data for Pulmonary (Internal Medicine, Books), updated Nov 2, 2026: median price $52.05, median 31 reviews, average rating 4.6 and a KDPTop opportunity score of 31/100 (highly competitive).
| Price range (middle 50%) | $19.99 – $109 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 11% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 1% of the parent category Internal Medicine (2,081), one of the easier corners under it.
- At $52.05 its median price beats 96% of Books categories, leaving more margin per copy.
- Prices spread wide: the middle half runs from $19.99 to $109, so budget editions and premium or boxed sets sell side by side.
Top 10 Pulmonary best sellers
-
Moving Beyond the COVID-19 Lies : Restoring Health & Hope for Humanity
by Bryan Ardis
- List rank#1
- Price$14.23
- Rating4.8
- Reviews1,764
-
The Ventilator Book
by William Owens MD
- List rank#2
- Price$26.01
- Rating4.8
- Reviews2,268
-
Marino's The ICU Book: Print + eBook with Updates
by Paul Marino
- List rank#3
- Price$112
- Rating4.1
- Reviews105
-
The Oxygen Advantage: Simple, Scientifically Proven Breathing Techniques to Help You Become Healthier, Slimmer, Faster and Fitter―Improve Your Health and Fitness with Efficient Breathing Techniques
- List rank#4
- Price$11.26
- Rating4.6
- Reviews2,382
-
Critical Care and Hospitalist Medicine Made Ridiculously Simple
by Michael Donahoe M.D.
- List rank#5
- Price$59.95
- Rating4.7
- Reviews748
-
HESI A2 Full Study Guide 3rd Edition: Complete Subject Review, 3 Full Practice Tests, 900 Realistic Questions, Online Flashcards, 100 video lessons
by Smart Edition
- List rank#6
- Price$31.91
- Rating4.7
- Reviews733
-
Break the Mold: 5 Tools to Conquer Mold and Take Back Your Health
by Dr. Jill Crista
- List rank#7
- Price$12.14
- Rating4.8
- Reviews669
-
NBRC Study Guide: Complete Respiratory Therapy (RT) Examination Review for the CRT and RRT with 1,000 Practice Questions and Answers, Short ... Practice Tests, and Test-Taking Strategies
- List rank#8
- Price$29.99
- Rating5.0
- Reviews6
-
Marino's The Little ICU Book
by Samuel M. Galvagno Jr. DO PhD FCCM
- List rank#9
- Price$74.97
- Rating4.5
- Reviews13
-
The Advanced Ventilator Book
by William Owens MD
- List rank#10
- Price$19.99
- Rating4.7
- Reviews492
FAQ
Is Pulmonary a good niche for Amazon KDP?
Its KDPTop opportunity score is 31/100, which makes it highly competitive. The median best seller has 31 reviews and sells for $52.05.
How many reviews do you need to rank in Pulmonary?
The median best seller has 31 reviews, and 72% of them have fewer than 100.
What do Pulmonary best sellers cost?
The median price is $52.05; half of the best sellers are priced between $19.99 and $109.
Can new books break into Pulmonary?
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.