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Postcards (Antiques & Collectibles, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Postcards (Antiques & Collectibles, Kindle eBooks), updated Nov 1, 2026: median price $12.99, median 4 reviews, average rating 4.5 and a KDPTop opportunity score of 21/100 (highly competitive).
| Price range (middle 50%) | $6.75 – $12.99 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 2% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 2% of the parent category Antiques & Collectibles (196), one of the easier corners under it.
- Only 2% of its best sellers are under 90 days old, fewer than in 93% of Kindle eBooks categories: established titles hold the list.
- At $12.99 its median price beats 96% of Kindle eBooks categories, leaving more margin per copy.
Top 10 Postcards best sellers
-
The Rockaways (Postcard History)
by Emil R. Lucev Sr.
- List rank#1
- Price$12.99
- Rating4.5
- Reviews12
-
American Holiday Postcards, 1905-1915: Imagery and Context
by Daniel Gifford
- List rank#2
- Price$24.59
- Rating4.4
- Reviews2
-
Collecting Stamps: A Hobby That Can Last A Lifetime
by Michael Gillette
- List rank#3
- Price$0.99
- Rating4.9
- Reviews15
-
Naughty Noir: French Risque Postcards that Push the Boundaries
by Igor Boyko
- List rank#4
- Price$4.99
- Reviews-
-
Notes on Postcards: A Memoir
by Jennifer Croft
- List rank#5
- Price$15.99
- Reviews-
-
Sewickley (Postcard History Series)
by Sewickley Valley Historical Society
- List rank#6
- Price$12.99
- Rating4.5
- Reviews9
-
Troup County in Vintage Postcards (Postcard History Series)
by Troup County Historical Society
- List rank#7
- Price$12.99
- Rating3.9
- Reviews3
-
Augusta (Postcard History Series)
by Roger A. Madore
- List rank#8
- Price$12.99
- Rating5.0
- Reviews1
-
Tuck’s Half Masks: Museum Edition: 41 Authentic Designs from the 19th Century for Costumes, Masquerades and Creative Expression
by Randa Lee
- List rank#9
- Price$9.99
- Rating4.1
- Reviews4
-
Cascade County and Great Falls (Postcard History)
by Ken Robison
- List rank#10
- Price$12.99
- Rating4.5
- Reviews2
FAQ
Is Postcards a good niche for Amazon KDP?
Its KDPTop opportunity score is 21/100, which makes it highly competitive. The median best seller has 4 reviews and sells for $12.99.
How many reviews do you need to rank in Postcards?
The median best seller has 4 reviews, and 99% of them have fewer than 100.
What do Postcards best sellers cost?
The median price is $12.99; half of the best sellers are priced between $6.75 and $12.99.
Can new books break into Postcards?
2% 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.