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Physiological Aspects (Psychology, Books): Amazon KDP category data
Amazon Books Best Sellers data for Physiological Aspects (Psychology, Books), updated Nov 3, 2026: median price $17.99, median 64 reviews, average rating 4.5 and a KDPTop opportunity score of 33/100 (highly competitive).
| Price range (middle 50%) | $13.93 – $32.87 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 5% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 2% of the parent category Psychology (3,386), one of the easier corners under it.
- Only 5% of its best sellers are under 90 days old, fewer than in 75% of Books categories: established titles hold the list.
- Prices spread wide: the middle half runs from $13.93 to $32.87, so budget editions and premium or boxed sets sell side by side.
Top 10 Physiological Aspects best sellers
-
Anchored: How to Befriend Your Nervous System Using Polyvagal Theory
by Deb Dana LCSW
- List rank#1
- Price$13.99
- Rating4.6
- Reviews1,042
-
Power vs. Force: The Hidden Determinants of Human Behavior
- List rank#2
- Price$16.91
- Rating4.7
- Reviews6,950
-
Six-Minute X-Ray: Rapid Behavior Profiling
by Chase Hughes
- List rank#3
- Price$14.47
- Rating4.7
- Reviews2,131
-
Grunt: The Curious Science of Humans at War
by Mary Roach
- List rank#4
- Price$11.99
- Rating4.4
- Reviews4,040
-
Change Your Brain, Change Your Life (Revised and Expanded): The Breakthrough Program for Conquering Anxiety, Depression, Obsessiveness, Lack of Focus, Anger, and Memory Problems
- List rank#5
- Price$19.59
- Rating4.5
- Reviews5,485
-
The Man Who Mistook His Wife for a Hat: and Other Clinical Tales
by Oliver Sacks
- List rank#6
- Price$19
- Rating4.4
- Reviews8,577
-
Neurogastronomy: How the Brain Creates Flavor and Why It Matters
by Gordon M. Shepherd
- List rank#7
- Price$11.99
- Rating4.5
- Reviews229
-
The Divided Mind
by John E. Sarno
- List rank#8
- Price$11.99
- Rating4.6
- Reviews1,583
-
Unthinkable: An Extraordinary Journey Through the World's Strangest Brains
by Helen Thomson
- List rank#9
- Price$2.99
- Rating4.3
- Reviews978
-
The Mind-Gut Connection: How the Hidden Conversation Within Our Bodies Impacts Our Mood, Our Choices, and Our Overall Health
by Emeran Mayer
- List rank#10
- Price$18.37
- Rating4.5
- Reviews4,125
FAQ
Is Physiological Aspects a good niche for Amazon KDP?
Its KDPTop opportunity score is 33/100, which makes it highly competitive. The median best seller has 64 reviews and sells for $17.99.
How many reviews do you need to rank in Physiological Aspects?
The median best seller has 64 reviews, and 66% of them have fewer than 100.
What do Physiological Aspects best sellers cost?
The median price is $17.99; half of the best sellers are priced between $13.93 and $32.87.
Can new books break into Physiological Aspects?
5% 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.