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Siblings (Family, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Siblings (Family, Kindle eBooks), updated Nov 2, 2026: median price $9.24, median 2,126 reviews, average rating 4.4 and a KDPTop opportunity score of 16/100 (highly competitive).
| Price range (middle 50%) | $6.96 – $9.99 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 5% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its review barrier is higher than in 94% of Kindle eBooks categories: the median best seller has 2,126 reviews, so new books need time to build up.
- Its median reviews are 26% of the parent category Family (8,260), one of the easier corners under it.
- Only 5% of its best sellers are under 90 days old, fewer than in 76% of Kindle eBooks categories: established titles hold the list.
Top 10 Siblings best sellers
-
The Cruel Prince (The Folk of the Air Book 1)
by Holly Black
- List rank#1
- Price$11.99
- Rating4.3
- Reviews75,859
-
Caraval
- List rank#2
- Price$9.99
- Rating4.3
- Reviews36,785
-
Legendary: A Caraval Novel
- List rank#3
- Price$9.99
- Rating4.4
- Reviews19,640
-
We'll Always Have Summer (Summer I Turned Pretty Book 3)
by Jenny Han
- List rank#4
- Price$9.99
- Rating4.4
- Reviews49,212
-
Finale: A Caraval Novel
- List rank#5
- Price$9.99
- Rating4.4
- Reviews20,294
-
-
The Rose Bargain: A Victorian Young Adult Romantasy Novel
- List rank#7
- Price$11.99
- Rating4.2
- Reviews7,370
-
The Grandest Game
- List rank#8
- Price$12.99
- Rating4.3
- Reviews5,483
-
-
Glorious Rivals (The Grandest Game Book 2)
- List rank#10
- Price$9.99
- Rating4.4
- Reviews2,974
FAQ
Is Siblings a good niche for Amazon KDP?
Its KDPTop opportunity score is 16/100, which makes it highly competitive. The median best seller has 2,126 reviews and sells for $9.24.
How many reviews do you need to rank in Siblings?
The median best seller has 2,126 reviews, and 4% of them have fewer than 100.
What do Siblings best sellers cost?
The median price is $9.24; half of the best sellers are priced between $6.96 and $9.99.
Can new books break into Siblings?
5% 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.