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20th Century (By Century, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for 20th Century (By Century, Kindle eBooks), updated Nov 2, 2026: median price $9.99, median 38 reviews, average rating 4.4 and a KDPTop opportunity score of 31/100 (highly competitive).
| Price range (middle 50%) | $3.99 – $12.34 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 7% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 44% of the parent category By Century (86), one of the easier corners under it.
- Prices spread wide: the middle half runs from $3.99 to $12.34, so budget editions and premium or boxed sets sell side by side.
Top 10 20th Century best sellers
-
Dancing at the Edge of the World: Thoughts on Words, Women, Places
- List rank#1
- Price$11.99
- Rating4.4
- Reviews92
-
-
Brave New World Revisited
- List rank#3
- Price$12.99
- Rating4.4
- Reviews1,699
-
Salinger: A Biography
by Paul Alexander
- List rank#4
- Price$2.99
- Rating3.8
- Reviews37
-
The Trouble with Being Born
by E. M. Cioran
- List rank#5
- Price$10.99
- Rating4.5
- Reviews1,374
-
Time and Narrative, Volume 2 (Time & Narrative)
by Paul Ricoeur
- List rank#6
- Price$3.99
- Rating4.7
- Reviews14
-
Exploring J.r.r. Tolkien's "the Hobbit"
by Corey Olsen
- List rank#7
- Price$10.96
- Rating4.7
- Reviews280
-
Notes on Blood Meridian: Revised and Expanded Edition (Southwestern Writers Collection Series, Wittliff Collections at Texas State University)
by John Sepich
- List rank#8
- Price$11.99
- Rating4.5
- Reviews152
-
Slips of the Mind: Poetry as Forgetting
by Jennifer Soong
- List rank#9
- Price$15.99
- Reviews-
-
Microworlds: Writings on Science Fiction and Fantasy
by Stanislaw Lem
- List rank#10
- Price$12
- Rating4.4
- Reviews36
FAQ
Is 20th Century a good niche for Amazon KDP?
Its KDPTop opportunity score is 31/100, which makes it highly competitive. The median best seller has 38 reviews and sells for $9.99.
How many reviews do you need to rank in 20th Century?
The median best seller has 38 reviews, and 74% of them have fewer than 100.
What do 20th Century best sellers cost?
The median price is $9.99; half of the best sellers are priced between $3.99 and $12.34.
Can new books break into 20th Century?
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.