KDP categories · Top KDP authors
20th Century (Canada, Books): Amazon KDP category data
Amazon Books Best Sellers data for 20th Century (Canada, Books), updated Nov 2, 2026: median price $23.17, median 52 reviews, average rating 4.4 and a KDPTop opportunity score of 28/100 (highly competitive).
| Price range (middle 50%) | $18.03 – $29.94 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 3% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 23% of the parent category Canada (222), one of the easier corners under it.
- Only 3% of its best sellers are under 90 days old, fewer than in 88% of Books categories: established titles hold the list.
- At $23.17 its median price beats 81% of Books categories, leaving more margin per copy.
Top 10 20th Century best sellers
-
DIEPPE 1942 The Jubilee Disaster: Operation Jubilee and the raid that failed
by Ronald Atkin
- List rank#1
- Price$0.99
- Rating4.4
- Reviews66
-
The Great Halifax Explosion: A World War I Story of Treachery, Tragedy, and Extraordinary Heroism
- List rank#2
- Price$13.99
- Rating4.5
- Reviews1,921
-
My Effin' Life: From Holocaust Roots to Rock and Roll Stardom
by Geddy Lee
- List rank#3
- Price$16.58
- Rating4.8
- Reviews4,242
-
VIMY RIDGE: Canada’s greatest victory of the First World War
by Alexander McKee
- List rank#4
- Price$0.99
- Rating3.5
- Reviews2
-
Man Called Intrepid: The Incredible WWII Narrative Of The Hero Whose Spy Network And Secret Diplomacy Changed The Course Of History
by William Stevenson
- List rank#5
- Price$12.55
- Rating4.7
- Reviews1,057
-
Patton's Gap: A Pilot’s Account of the Battle of Normandy (Major Battles of World War Two)
by Richard H. Rohmer
- List rank#6
- Price$5.99
- Rating4.2
- Reviews1,243
-
Aircrew Unlimited: The Untold Story of the Global Training Effort That Won World War II in the Skies (Untold Stories of WWII Aerial Warfare Book 4)
by John Golley
- List rank#7
- Price$5.99
- Rating3.8
- Reviews24
-
The Dieppe Raid: The Combined Operations Assault on Hitler's European Fortress, August 1942
by UK War Office
- List rank#8
- Price$7.99
- Rating4.2
- Reviews13
-
And We Go On: A Memoir of the Great War (Carleton Library Series, 229) (Volume 229)
by Will R. Bird
- List rank#9
- Price$28.95
- Rating4.8
- Reviews58
-
A Short History of Canada: Seventh Edition
by Desmond Morton
- List rank#10
- Price$18.99
- Rating4.1
- Reviews106
FAQ
Is 20th Century a good niche for Amazon KDP?
Its KDPTop opportunity score is 28/100, which makes it highly competitive. The median best seller has 52 reviews and sells for $23.17.
How many reviews do you need to rank in 20th Century?
The median best seller has 52 reviews, and 64% of them have fewer than 100.
What do 20th Century best sellers cost?
The median price is $23.17; half of the best sellers are priced between $18.03 and $29.94.
Can new books break into 20th Century?
3% 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.