KDP categories · Top KDP authors
Siblings (Family Relationships, Books): Amazon KDP category data
Amazon Books Best Sellers data for Siblings (Family Relationships, Books), updated Nov 3, 2026: median price $11.99, median 394 reviews, average rating 4.5 and a KDPTop opportunity score of 27/100 (highly competitive).
| Price range (middle 50%) | $10.27 – $14.27 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 10% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 8% of the parent category Family Relationships (4,988), one of the easier corners under it.
- At $11.99 its median price is below 82% of Books categories, so it is a volume game.
- Its review barrier is higher than in 73% of Books categories: the median best seller has 394 reviews, so new books need time to build up.
Top 10 Siblings best sellers
-
The Land and Its People: Essays
- List rank#1
- Price$16.95
- Rating4.5
- Reviews3,241
-
Habits of the Household: Practicing the Story of God in Everyday Family Rhythms
- List rank#2
- Price$11
- Rating4.8
- Reviews3,071
-
52 Modern Manners for Kids
by Brooke Romney
- List rank#3
- Price$24.99
- Rating4.9
- Reviews455
-
This Book Stinks!: A Funny Interactive Picture Book About Caring For Littles And Stinky Surprises (Finn the Frog Collection®)
by Ron Keres
- List rank#4
- Price$10.99
- Rating4.4
- Reviews2,271
-
The Best of Me
- List rank#5
- Price$23.95
- Rating4.6
- Reviews5,945
-
Siblings Without Rivalry: How to Help Your Children Live Together So You Can Live Too
by Adele Faber
- List rank#6
- Price$13.24
- Rating4.6
- Reviews2,879
-
SURVIVING THE DEATH OF A SIBLING: Living Through Grief When an Adult Brother or Sister Dies
by T.J. Wray
- List rank#7
- Price$17
- Rating4.7
- Reviews941
-
Happy-Go-Lucky
- List rank#8
- Price$20.59
- Rating4.6
- Reviews8,230
-
Calypso
- List rank#9
- Price$20.59
- Rating4.4
- Reviews17,134
-
How to Be a Big Brother: 5 Illustrated Stories to Help Boys Prepare for a New Baby, Handle Big Feelings, Feel Included, and Build a Loving Sibling Bond (Big Brother Big Heart)
by kite Editions
- List rank#10
- Price$11.96
- Rating4.7
- Reviews25
Same niche in Kindle eBooks: Siblings
FAQ
Is Siblings a good niche for Amazon KDP?
Its KDPTop opportunity score is 27/100, which makes it highly competitive. The median best seller has 394 reviews and sells for $11.99.
How many reviews do you need to rank in Siblings?
The median best seller has 394 reviews, and 32% of them have fewer than 100.
What do Siblings best sellers cost?
The median price is $11.99; half of the best sellers are priced between $10.27 and $14.27.
Can new books break into Siblings?
10% 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.