KDP categories · Top KDP authors
General & Reference (Chemistry, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for General & Reference (Chemistry, Kindle eBooks), updated Nov 3, 2026: median price $9.99, median 33 reviews, average rating 4.4 and a KDPTop opportunity score of 26/100 (highly competitive).
| Price range (middle 50%) | $4.99 – $14.99 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 8% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 32% of the parent category Chemistry (102), one of the easier corners under it.
- Prices spread wide: the middle half runs from $4.99 to $14.99, so budget editions and premium or boxed sets sell side by side.
Top 10 General & Reference 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
-
Scientific American June 2026
- List rank#3
- Price$6.99
- Rating4.4
- Reviews42
-
Scientific American November 2026
- List rank#4
- Price$6.99
- Reviews-
-
The Elements: A Visual Exploration of Every Known Atom in the Universe
- List rank#5
- Price$4.99
- Rating4.8
- Reviews3,003
-
Liquid Rules: The Delightful and Dangerous Substances That Flow Through Our Lives
- List rank#6
- Price$8.54
- Rating4.5
- Reviews723
-
Periodic Tales: A Cultural History of the Elements, from Arsenic to Zinc
by Hugh Aldersey-Williams
- List rank#7
- Price$10.44
- Rating4.2
- Reviews769
-
The Disappearing Spoon: And Other True Tales of Madness, Love, and the History of the World from the Periodic Table of the Elements
by Sam Kean
- List rank#8
- Price$11.99
- Rating4.5
- Reviews3,499
-
The Periodic Kingdom: A Journey Into The Land Of The Chemical Elements (Science Masters Series)
by PW Atkins
- List rank#9
- Price$1.99
- Rating4.0
- Reviews87
-
Molecular Gastronomy: Exploring the Science of Flavor (Arts and Traditions of the Table Perspectives on Culinary History)
by Hervé This
- List rank#10
- Price$2.99
- Rating4.3
- Reviews469
Same niche in Books: General & Reference
FAQ
Is General & Reference a good niche for Amazon KDP?
Its KDPTop opportunity score is 26/100, which makes it highly competitive. The median best seller has 33 reviews and sells for $9.99.
How many reviews do you need to rank in General & Reference?
The median best seller has 33 reviews, and 64% of them have fewer than 100.
What do General & Reference best sellers cost?
The median price is $9.99; half of the best sellers are priced between $4.99 and $14.99.
Can new books break into General & Reference?
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.