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Postcards (Paper Ephemera & Cards, Books): Amazon KDP category data
Amazon Books Best Sellers data for Postcards (Paper Ephemera & Cards, Books), updated Nov 2, 2026: median price $18.19, median 39 reviews, average rating 4.6 and a KDPTop opportunity score of 25/100 (highly competitive).
| Price range (middle 50%) | $12.99 – $20.00 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 9% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 47% of the parent category Paper Ephemera & Cards (84), one of the easier corners under it.
Top 10 Postcards best sellers
-
National Parks Postcards: 100 Illustrations That Celebrate America's Natural Wonders
by Fifty-Nine Parks
- List rank#1
- Price$18.64
- Rating4.8
- Reviews995
-
Studio Ghibli®: 100 Collectible Postcards: Final Frames from the Feature Films (1984-2014)
- List rank#2
- Price$23.25
- Rating4.9
- Reviews5,726
-
Richard Scarry's Busy, Busy Box of Postcards: 100 Colorful Postcards to Save and Share
- List rank#3
- Price$19.98
- Rating4.8
- Reviews118
-
A World of Patterns: 100 Vibrant Postcards
by Christine Chitnis
- List rank#4
- Price$20
- Rating4.6
- Reviews77
-
Peanuts: Happiness Is a Postcard: 50 Unique Postcards from Charlie Brown and Snoopy’s World
- List rank#5
- Price$19.70
- Rating4.8
- Reviews46
-
Sibley Backyard Birding Postcards: 100 Postcards (Sibley Birds)
- List rank#6
- Price$18.64
- Rating4.6
- Reviews533
-
The Goth Garden: Dark Blooms: 50 Postcards Featuring the Mystery and Beauty of the Goth Garden
by Felicia Feaster
- List rank#7
- Price$17.36
- Rating5.0
- Reviews8
-
New York Botanical Garden: In Full Bloom Postcards: 100 Postcards from the Archives of the New York Botanical Garden
by The New York Botanical Garden
- List rank#8
- Price$20.39
- Rating4.6
- Reviews33
-
Botanicals: 100 Postcards from the Archives of the New York Botanical Garden
by The New York Botanical Garden
- List rank#9
- Price$17.32
- Rating4.9
- Reviews1,505
-
World's Greatest Bookstores: 100 Postcards Celebrating the Most Beloved Bookshops
by Bob Eckstein
- List rank#10
- Price$15.50
- Rating4.8
- Reviews285
FAQ
Is Postcards a good niche for Amazon KDP?
Its KDPTop opportunity score is 25/100, which makes it highly competitive. The median best seller has 39 reviews and sells for $18.19.
How many reviews do you need to rank in Postcards?
The median best seller has 39 reviews, and 66% of them have fewer than 100.
What do Postcards best sellers cost?
The median price is $18.19; half of the best sellers are priced between $12.99 and $20.00.
Can new books break into Postcards?
9% 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.