KDP categories · Top KDP authors
Sisters: Amazon KDP category data
Amazon Books Best Sellers data for Sisters, updated Nov 3, 2026: median price $4.99, median 9,448 reviews, average rating 4.4 and a KDPTop opportunity score of 15/100 (highly competitive).
| Price range (middle 50%) | $2.99 – $10.59 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 21% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its review barrier is higher than in 98% of Books categories: the median best seller has 9,448 reviews, so new books need time to build up.
- At $4.99 its median price is below 99% of Books categories, so it is a volume game.
- 21% of its best sellers came out in the last 90 days, more than in 91% of Books categories: readers here keep buying new titles.
Top 10 Sisters best sellers
-
The Calamity Club: A Novel
- List rank#1
- Price$16.99
- Rating4.7
- Reviews100,505
-
Three Fates
by Nora Roberts
- List rank#2
- Price$2.99
- Rating4.6
- Reviews5,114
-
The Nightingale: A Novel
- List rank#3
- Price$14.14
- Rating4.7
- Reviews427,350
-
The Book Club for Troublesome Women: A Novel
by Marie Bostwick
- List rank#4
- Price$10.91
- Rating4.4
- Reviews34,596
-
Kin: Oprah's Book Club: A Novel
by Tayari Jones
- List rank#5
- Price$14.99
- Rating4.4
- Reviews18,493
-
-
The Firefly Hour: A Novel
by Annie Rains
- List rank#7
- Price$1.99
- Rating3.6
- Reviews3
-
Not His Bride: A Marriage of Convenience Betrayal (OTT Shorts)
by Audrey Halliwell
- List rank#8
- Price$2.99
- Rating4.1
- Reviews771
-
The Good Sister: A Novel
- List rank#9
- Price$2.99
- Rating4.4
- Reviews47,238
-
How to Troll a Guy in Ten Days: A Viral Sensation Romance (Accidentally Infamous Book 3)
by Pippa Grant
- List rank#10
- Price$5.99
- Rating4.5
- Reviews1,543
FAQ
Is Sisters a good niche for Amazon KDP?
Its KDPTop opportunity score is 15/100, which makes it highly competitive. The median best seller has 9,448 reviews and sells for $4.99.
How many reviews do you need to rank in Sisters?
The median best seller has 9,448 reviews, and 4% of them have fewer than 100.
What do Sisters best sellers cost?
The median price is $4.99; half of the best sellers are priced between $2.99 and $10.59.
Can new books break into Sisters?
21% 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.