KDP categories · Top KDP authors
Mariology (Catholicism, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Mariology (Catholicism, Kindle eBooks), updated Nov 2, 2026: median price $5.99, median 62 reviews, average rating 4.8 and a KDPTop opportunity score of 30/100 (highly competitive).
| Price range (middle 50%) | $2.99 – $9.99 |
|---|---|
| Average rating | 4.8 |
| New releases (90 days) | 19% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 12% of the parent category Catholicism (496), one of the easier corners under it.
- 19% of its best sellers came out in the last 90 days, more than in 85% of Kindle eBooks categories: readers here keep buying new titles.
- Prices spread wide: the middle half runs from $2.99 to $9.99, so budget editions and premium or boxed sets sell side by side.
Top 10 Mariology best sellers
-
The Holy Rosary Prayer Book: A Complete Catholic Guide for How to Pray the Rosary with Scripture, Meditations, and All Mysteries Included
by Natalie Delgado
- List rank#1
- Price$3.99
- Rating4.8
- Reviews127
-
St. Louis de Montfort's Total Consecration to Jesus through Mary: New, Day-by-Day, Easier-to-Read Translation
by St. Louis de Montfort
- List rank#2
- Price$5.99
- Rating4.8
- Reviews505
-
The Power of the Rosary
by Gabriel Castillo
- List rank#3
- Price$9.99
- Rating4.9
- Reviews383
-
33 Days to Morning Glory: A Do-It-Yourself Retreat In Preparation for Marian Consecration
by Michael E. Gaitley
- List rank#4
- Price$6.89
- Rating4.9
- Reviews3,817
-
The Amazing Secret of Purgatory
by Sister Emmanuel
- List rank#5
- Price$5.99
- Rating4.8
- Reviews584
-
Meditations on the Fifteen Mysteries of the Rosary: A Traditional Catholic Rosary Book with Archbishop Fulton Sheen
by Fulton Sheen
- List rank#6
- Price$2.99
- Rating4.9
- Reviews198
-
The Life of Mary of Nazareth: Reflections of an Exorcist (The Mission of Fr. Gabriele Amorth: Rome's Exorcist Book 2)
by Gabriele Amorth
- List rank#7
- Price$5.95
- Rating4.8
- Reviews155
-
“My Rosary”: The Beloved Prayer of an Exorcist (The Mission of Fr. Gabriele Amorth: Rome's Exorcist Book 1)
by Gabriele Amorth
- List rank#8
- Price$5.95
- Rating4.8
- Reviews654
-
The Secret of the Rosary (The School of the Rosary Series)
by Louis-Marie Grignion de Montfort
- List rank#9
- Price$4.83
- Rating4.8
- Reviews2,478
-
![The Saint Louis de Montfort Collection [7 Books] book cover by Saint Louis de Montfort](https://images-na.ssl-images-amazon.com/images/I/71mMhS49f6L._AC_UL300_SR300,200_.jpg)
The Saint Louis de Montfort Collection [7 Books]
by Saint Louis de Montfort
- List rank#10
- Price$1.99
- Rating4.7
- Reviews161
Same niche in Books: Mariology
FAQ
Is Mariology a good niche for Amazon KDP?
Its KDPTop opportunity score is 30/100, which makes it highly competitive. The median best seller has 62 reviews and sells for $5.99.
How many reviews do you need to rank in Mariology?
The median best seller has 62 reviews, and 59% of them have fewer than 100.
What do Mariology best sellers cost?
The median price is $5.99; half of the best sellers are priced between $2.99 and $9.99.
Can new books break into Mariology?
19% 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.