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20th Century (Teen & Young Adult › Historical Fiction › United States, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for 20th Century (Teen & Young Adult › Historical Fiction › United States, Kindle eBooks), updated Nov 2, 2026: median price $7.48, median 247 reviews, average rating 4.5 and a KDPTop opportunity score of 22/100 (highly competitive).
| Price range (middle 50%) | $4.74 – $9.99 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 14% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 37% of the parent category United States (663), one of the easier corners under it.
- Its review barrier is higher than in 71% of Kindle eBooks categories: the median best seller has 247 reviews, so new books need time to build up.
Top 10 20th Century best sellers
-
Truly Devious: A Mystery
- List rank#1
- Price$11.99
- Rating4.2
- Reviews8,430
-
The Adventures of Huckleberry Finn: The Original 1884 Unabridged and Complete Edition (Mark Twain Classics)
by Mark Twain
- List rank#2
- Price$0.99
- Rating4.4
- Reviews2,558
-
The Velvet Knife (Truly Devious)
- List rank#3
- Price$9.99
- Rating4.1
- Reviews283
-
I Know an Old Lady: A Coming of Age Novel
by Margaret Standafer
- List rank#4
- Price$3.99
- Rating4.6
- Reviews6,097
-
Bluebird
by Sharon Cameron
- List rank#5
- Price$7.99
- Rating4.5
- Reviews1,126
-
The Vanishing Stair: The New York Times Bestselling Second Truly Devious Young Adult Mystery Novel
- List rank#6
- Price$13.99
- Rating4.5
- Reviews5,329
-
These Happy Golden Years: The Newbery Honor Little House Story about First Love on the American Frontier for Kids (Ages 8-12) (Little House on the Prairie Book 8)
- List rank#7
- Price$9.99
- Rating4.8
- Reviews3,058
-
The Hand on the Wall: Stevie Bell races a mountain storm to unmask Truly Devious as new deaths rock Ellingham Academy in this gripping YA finale
- List rank#8
- Price$13.99
- Rating4.5
- Reviews5,592
-
The Box in the Woods: A Hilarious and Spine-Chilling Young Adult Thriller about an Amateur Sleuth Investigating a Cold Case (Truly Devious)
- List rank#9
- Price$12.49
- Rating4.4
- Reviews3,582
-
Almost There: A Twisted Tale
by Farrah Rochon
- List rank#10
- Price$10.99
- Rating4.8
- Reviews2,100
FAQ
Is 20th Century a good niche for Amazon KDP?
Its KDPTop opportunity score is 22/100, which makes it highly competitive. The median best seller has 247 reviews and sells for $7.48.
How many reviews do you need to rank in 20th Century?
The median best seller has 247 reviews, and 30% of them have fewer than 100.
What do 20th Century best sellers cost?
The median price is $7.48; half of the best sellers are priced between $4.74 and $9.99.
Can new books break into 20th Century?
14% 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.