KDP categories · Top KDP authors
Chaos & Systems: Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Chaos & Systems, updated Nov 3, 2026: median price $9.97, median 78 reviews, average rating 4.3 and a KDPTop opportunity score of 20/100 (highly competitive).
| Price range (middle 50%) | $6.24 – $13.99 |
|---|---|
| Average rating | 4.3 |
| New releases (90 days) | 7% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 27% of the parent category Mathematics (286), one of the easier corners under it.
- Prices spread wide: the middle half runs from $6.24 to $13.99, so budget editions and premium or boxed sets sell side by side.
Top 10 Chaos & Systems best sellers
-
Black Holes: The Key to Understanding the Universe
by Brian Cox
- List rank#1
- Price$1.99
- Rating4.6
- Reviews1,581
-
Thinking in Systems: International Bestseller
- List rank#2
- Price$16.99
- Rating4.6
- Reviews6,548
-
Scientific American September 2026
- List rank#3
- Price$6.99
- Rating4.8
- Reviews13
-
Scientific American October 2026
- List rank#4
- Price$6.99
- Rating4.2
- Reviews7
-
Scientific American June 2026
- List rank#5
- Price$6.99
- Rating4.4
- Reviews42
-
Systems Thinking for Work: How Leaders, Managers, and Professionals Solve Complex Problems, Avoid Costly Mistakes, and Make Smarter Decisions. (The Systems Thinker Series Book 8)
- List rank#6
- Price$4.99
- Rating5.0
- Reviews3
-
Scientific American November 2026
- List rank#7
- Price$6.99
- Reviews-
-
Do Dice Play God?: The Mathematics of Uncertainty
by Ian Stewart
- List rank#8
- Price$1.99
- Rating4.3
- Reviews111
-
Liber Null & Psychonaut: The Practice of Chaos Magic (Revised and Expanded Edition) (Weiser Classics Series)
by Peter J. Carroll
- List rank#9
- Price$9.99
- Rating4.8
- Reviews350
-
Same niche in Books: Number Systems
FAQ
Is Chaos & Systems a good niche for Amazon KDP?
Its KDPTop opportunity score is 20/100, which makes it highly competitive. The median best seller has 78 reviews and sells for $9.97.
How many reviews do you need to rank in Chaos & Systems?
The median best seller has 78 reviews, and 55% of them have fewer than 100.
What do Chaos & Systems best sellers cost?
The median price is $9.97; half of the best sellers are priced between $6.24 and $13.99.
Can new books break into Chaos & Systems?
7% 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.