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Quantum Theory (Physics, Books): Amazon KDP category data
Amazon Books Best Sellers data for Quantum Theory (Physics, Books), updated Nov 2, 2026: median price $14.39, median 554 reviews, average rating 4.5 and a KDPTop opportunity score of 29/100 (highly competitive).
| Price range (middle 50%) | $11.23 – $19 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 8% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 30% of the parent category Physics (1,850), one of the easier corners under it.
- Its review barrier is higher than in 77% of Books categories: the median best seller has 554 reviews, so new books need time to build up.
Top 10 Quantum Theory best sellers
-
Black Holes: The Key to Understanding the Universe
by Brian Cox
- List rank#1
- Price$1.99
- Rating4.6
- Reviews1,581
-
Six Impossible Things: The Mystery of the Quantum World
by John Gribbin
- List rank#2
- Price$11.99
- Rating4.4
- Reviews142
-
Waves in an Impossible Sea: How Everyday Life Emerges from the Cosmic Ocean
by Matt Strassler
- List rank#3
- Price$2.99
- Rating4.5
- Reviews436
-
The Quantum Universe: (And Why Anything That Can Happen, Does)
by Brian Cox
- List rank#4
- Price$1.99
- Rating4.4
- Reviews1,351
-
Reality Is Not What It Seems: The Journey to Quantum Gravity
- List rank#5
- Price$10.48
- Rating4.5
- Reviews4,766
-
Quantum Theory
by Max Planck
- List rank#6
- Price$0.99
- Rating4.5
- Reviews871
-
Time Loops: Precognition, Retrocausation, and the Unconscious
by Eric Wargo
- List rank#7
- Price$21.07
- Rating4.3
- Reviews189
-
-
Scientific American September 2026
- List rank#9
- Price$6.99
- Rating4.8
- Reviews13
-
Something Deeply Hidden: Quantum Worlds and the Emergence of Spacetime
by Sean Carroll
- List rank#10
- Price$17.69
- Rating4.6
- Reviews3,482
Same niche in Kindle eBooks: Quantum Theory
FAQ
Is Quantum Theory a good niche for Amazon KDP?
Its KDPTop opportunity score is 29/100, which makes it highly competitive. The median best seller has 554 reviews and sells for $14.39.
How many reviews do you need to rank in Quantum Theory?
The median best seller has 554 reviews, and 7% of them have fewer than 100.
What do Quantum Theory best sellers cost?
The median price is $14.39; half of the best sellers are priced between $11.23 and $19.
Can new books break into Quantum Theory?
8% 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.