KDP categories · Top KDP authors
Time (Physics, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Time (Physics, Kindle eBooks), updated Nov 3, 2026: median price $8.99, median 74 reviews, average rating 4.3 and a KDPTop opportunity score of 20/100 (highly competitive).
| Price range (middle 50%) | $5.99 – $11.99 |
|---|---|
| Average rating | 4.3 |
| New releases (90 days) | 8% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 11% of the parent category Physics (682), one of the easier corners under it.
Top 10 Time 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
-
The Order of Time
- List rank#3
- Price$9.99
- Rating4.4
- Reviews5,998
-
Scientific American June 2026
- List rank#4
- Price$6.99
- Rating4.4
- Reviews42
-
![Sapiens [Tenth Anniversary Edition]: A Brief History of Humankind – The #1 New York Times book cover by Yuval Noah Harari](https://images-na.ssl-images-amazon.com/images/I/71kVn6thiBL._AC_UL300_SR300,200_.jpg)
Sapiens [Tenth Anniversary Edition]: A Brief History of Humankind – The #1 New York Times Bestseller Exploring Evolution and Ancient Socieities
- List rank#5
- Price$17.99
- Rating4.6
- Reviews134,001
-
Homo Deus: A Brief History of Tomorrow — A Full-Color Look at the Future of Humankind
- List rank#6
- Price$15.49
- Rating4.5
- Reviews38,184
-
Scientific American November 2026
- List rank#7
- Price$6.99
- Reviews-
-
In Search of Now: The Science of the Present Moment
by Jo Marchant
- List rank#8
- Price$16.92
- Rating4.2
- Reviews82
-
Four Thousand Weeks: Embrace your limits. Change your life. Make your four thousand weeks count.
- List rank#9
- Price-
- Rating4.5
- Reviews14,635
-
The Fabric of the Cosmos: Space, Time, and the Texture of Reality
by Brian Greene
- List rank#10
- Price$6.99
- Rating4.6
- Reviews2,316
Same niche in Books: Time
FAQ
Is Time a good niche for Amazon KDP?
Its KDPTop opportunity score is 20/100, which makes it highly competitive. The median best seller has 74 reviews and sells for $8.99.
How many reviews do you need to rank in Time?
The median best seller has 74 reviews, and 57% of them have fewer than 100.
What do Time best sellers cost?
The median price is $8.99; half of the best sellers are priced between $5.99 and $11.99.
Can new books break into Time?
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.