KDP categories · Top KDP authors
Microbiology (Biology, Books): Amazon KDP category data
Amazon Books Best Sellers data for Microbiology (Biology, Books), updated Nov 2, 2026: median price $16.08, median 110 reviews, average rating 4.5 and a KDPTop opportunity score of 30/100 (highly competitive).
| Price range (middle 50%) | $11.69 – $26.35 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 12% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 5% of the parent category Biology (2,172), one of the easier corners under it.
- Prices spread wide: the middle half runs from $11.69 to $26.35, so budget editions and premium or boxed sets sell side by side.
Top 10 Microbiology best sellers
-
Scientific American September 2026
- List rank#1
- Price$6.99
- Rating4.8
- Reviews13
-
I Contain Multitudes: The Microbes Within Us and a Grander View of Life ― A Popular Science Look at Microbes and Life
by Ed Yong
- List rank#2
- Price$11.69
- Rating4.6
- Reviews4,261
-
Scientific American October 2026
- List rank#3
- Price$6.99
- Rating4.2
- Reviews7
-
The Ghost Map: The Story of London's Most Terrifying Epidemic--and How It Changed Science, Cities, and the Modern World
- List rank#4
- Price$9.99
- Rating4.4
- Reviews2,583
-
Scientific American June 2026
- List rank#5
- Price$6.99
- Rating4.4
- Reviews42
-
The Coming Wave: AI, Power, and Our Future
- List rank#6
- Price$13.99
- Rating4.3
- Reviews5,465
-
The Good Gut: Taking Control of Your Weight, Your Mood, and Your Long-term Health
by Justin Sonnenburg
- List rank#7
- Price$11.54
- Rating4.5
- Reviews1,191
-
The Infectious Disease Colouring Book:: A Gruesome Colouring Therapy Adventure
by MR Nicholas Wright
- List rank#8
- Price$9.86
- Rating4.6
- Reviews415
-
Spillover
- List rank#9
- Price$26.95
- Rating4.7
- Reviews4,924
-
Dr. Mary's Monkey: How the Unsolved Murder of a Doctor, a Secret Laboratory in New Orleans and Cancer-Causing Monkey Viruses Are Linked to Lee Harvey Oswald, the JFK Assassination, and Emerging Global
by Edward T. Haslam
- List rank#10
- Price$16.29
- Rating4.6
- Reviews2,061
Same niche in Kindle eBooks: Microbiology
FAQ
Is Microbiology a good niche for Amazon KDP?
Its KDPTop opportunity score is 30/100, which makes it highly competitive. The median best seller has 110 reviews and sells for $16.08.
How many reviews do you need to rank in Microbiology?
The median best seller has 110 reviews, and 48% of them have fewer than 100.
What do Microbiology best sellers cost?
The median price is $16.08; half of the best sellers are priced between $11.69 and $26.35.
Can new books break into Microbiology?
12% 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.