KDP categories · Top KDP authors
Sedimentary: Amazon KDP category data
Amazon Books Best Sellers data for Sedimentary, updated Nov 2, 2026: median price $31.40, median 4 reviews, average rating 4.5 and a KDPTop opportunity score of 26/100 (highly competitive).
| Price range (middle 50%) | $22.21 – $82.21 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 7% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 1% of the parent category Geology (307), one of the easier corners under it.
- Its review barrier is lower than in 92% of Books categories: the median best seller has only 4 reviews, so new books can chart with few.
- At $31.40 its median price beats 90% of Books categories, leaving more margin per copy.
Top 10 Sedimentary best sellers
-
Scientific American September 2026
- List rank#1
- Price$6.99
- Rating4.8
- Reviews13
-
Scientific American October 2026
- List rank#2
- Price$6.99
- Rating4.2
- Reviews7
-
Strata: Stories from Deep Time
by Laura Poppick
- List rank#3
- Price$18.19
- Rating4.5
- Reviews186
-
Scientific American November 2026
- List rank#4
- Price$6.99
- Reviews-
-
The World Beneath Our Feet: The Hidden Life of Soil and Why It Matters to Us All
by Frank Ashwood
- List rank#5
- Price$28.99
- Rating3.3
- Reviews4
-
Scientific American May 2026
- List rank#6
- Price$6.99
- Rating4.0
- Reviews1
-
Scientific American 20th January 2026
- List rank#7
- Price$6.99
- Rating4.6
- Reviews3
-
Scientific American July/August 2026
- List rank#8
- Price$6.99
- Rating4.7
- Reviews8
-
Roadside Geology of Pennsylvania (Roadside Geology Series)
by Bradford B. Van Diver
- List rank#9
- Price$9.99
- Rating4.3
- Reviews68
-
Rocks and Riches: Exploring California’s Stunning Geology
by Gary L. Prost
- List rank#10
- Price$23.11
- Rating5.0
- Reviews2
FAQ
Is Sedimentary a good niche for Amazon KDP?
Its KDPTop opportunity score is 26/100, which makes it highly competitive. The median best seller has 4 reviews and sells for $31.40.
How many reviews do you need to rank in Sedimentary?
The median best seller has 4 reviews, and 97% of them have fewer than 100.
What do Sedimentary best sellers cost?
The median price is $31.40; half of the best sellers are priced between $22.21 and $82.21.
Can new books break into Sedimentary?
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.