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Science Fiction & Fantasy (Calendars, Books): Amazon KDP category data
Amazon Books Best Sellers data for Science Fiction & Fantasy (Calendars, Books), updated Nov 3, 2026: median price $16.98, median 31 reviews, average rating 4.7 and a KDPTop opportunity score of 29/100 (highly competitive).
| Price range (middle 50%) | $14.63 – $19.72 |
|---|---|
| Average rating | 4.7 |
| New releases (90 days) | 13% |
| Books on the list | 100 |
| Store | Books |
Top 10 Science Fiction & Fantasy best sellers
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Harry Potter Official Advent Calendar Hogwarts Seasonal Surprises: 25 Days of Gifts, with Stationery, Key Chains, Washi Tapes and More!
- List rank#1
- Price$19.36
- Rating4.2
- Reviews546
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The Lord of the Rings: The Official Advent Calendar: 25 Days of Surprises
- List rank#2
- Price$34.99
- Rating4.7
- Reviews7
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The Usborne Advent Calendar Book Collection (Where's the...)
by Usborne
- List rank#3
- Price$24.31
- Rating4.7
- Reviews445
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2027 Star Wars Wall Calendar
- List rank#4
- Price$17.99
- Rating4.4
- Reviews7
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2027 Star Wars 50th Anniversary Collector's Edition Calendar
- List rank#7
- Price$31.99
- Rating4.9
- Reviews15
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2027 Harry Potter Wall Calendar
- List rank#8
- Price$17.99
- Rating4.8
- Reviews8
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Boris Vallejo and Julie Bell's Fantasy Wall Calendar 2027: A Year of Classic Fantasy Art for 2027
by Boris Vallejo
- List rank#9
- Price$16.97
- Rating4.8
- Reviews294
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2027 Star Wars: The Mandalorian and Grogu Wall Calendar
- List rank#10
- Price$16.77
- Rating5.0
- Reviews5
FAQ
Is Science Fiction & Fantasy a good niche for Amazon KDP?
Its KDPTop opportunity score is 29/100, which makes it highly competitive. The median best seller has 31 reviews and sells for $16.98.
How many reviews do you need to rank in Science Fiction & Fantasy?
The median best seller has 31 reviews, and 69% of them have fewer than 100.
What do Science Fiction & Fantasy best sellers cost?
The median price is $16.98; half of the best sellers are priced between $14.63 and $19.72.
Can new books break into Science Fiction & Fantasy?
13% 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.