KDP categories · Top KDP authors
Reform (Movements, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Reform (Movements, Kindle eBooks), updated Nov 2, 2026: median price $12.99, median 21 reviews, average rating 4.6 and a KDPTop opportunity score of 21/100 (highly competitive).
| Price range (middle 50%) | $9.99 – $12.99 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 1% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Only 1% of its best sellers are under 90 days old, fewer than in 97% of Kindle eBooks categories: established titles hold the list.
- At $12.99 its median price beats 96% of Kindle eBooks categories, leaving more margin per copy.
- Its median reviews are 45% of the parent category Movements (47), one of the easier corners under it.
Top 10 Reform best sellers
-
Mishkan T'filah: Shabbat: A Reform Siddur
by Elyse D. Frishman
- List rank#1
- Price$12.99
- Rating4.7
- Reviews243
-
Mishkan T'filah: A Reform Siddur: Complete: Shabbat, Weekdays, and Festivals (Transliterated)
by Elyse Frishman
- List rank#2
- Price$19.99
- Rating4.6
- Reviews249
-
The Spiritual Practice of Good Actions: Finding Balance Through the Soul Traits of Mussar
by Greg Marcus
- List rank#3
- Price$9.99
- Rating4.6
- Reviews118
-
This Grateful Heart: Psalms and Prayers for a New Day
by Alden Solovy
- List rank#4
- Price$12.99
- Rating4.6
- Reviews39
-
This Joyous Soul: A New Voice for Ancient Yearnings
by Alden Solovy
- List rank#5
- Price$10.01
- Rating4.9
- Reviews10
-
Gates of Shabbat: Shaarei Shabbat: A Guide for Observing Shabbat, Revised Edition
by Mark Dov Shapiro
- List rank#6
- Price$9.99
- Rating4.8
- Reviews51
-
The Sacred Exchange: A Jewish Money Ethic (Challenge and Change)
by Mary L. Zamore
- List rank#7
- Price$12.99
- Rating4.2
- Reviews9
-
On the Doorposts of Your House: Prayers and Ceremonies for the Jewish Home
by Chaim Stern
- List rank#8
- Price$12.99
- Rating4.2
- Reviews7
-
Mishkan HaNefesh: Yom Kippur: Machzor for the Days of Awe
by Rabbi Edwin Goldberg
- List rank#9
- Price$12.99
- Rating4.8
- Reviews197
-
Mishkan HaNefesh: Rosh HaShanah: Machzor for the Days of Awe
by Rabbi Edwin Goldberg
- List rank#10
- Price$12.99
- Rating4.7
- Reviews208
Same niche in Books: Reform
FAQ
Is Reform a good niche for Amazon KDP?
Its KDPTop opportunity score is 21/100, which makes it highly competitive. The median best seller has 21 reviews and sells for $12.99.
How many reviews do you need to rank in Reform?
The median best seller has 21 reviews, and 86% of them have fewer than 100.
What do Reform best sellers cost?
The median price is $12.99; half of the best sellers are priced between $9.99 and $12.99.
Can new books break into Reform?
1% 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.