KDP categories · Top KDP authors
Ethics (Religious Studies, Books): Amazon KDP category data
Amazon Books Best Sellers data for Ethics (Religious Studies, Books), updated Nov 2, 2026: median price $14.25, median 289 reviews, average rating 4.7 and a KDPTop opportunity score of 28/100 (highly competitive).
| Price range (middle 50%) | $10.18 – $21.60 |
|---|---|
| Average rating | 4.7 |
| New releases (90 days) | 3% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 11% of the parent category Religious Studies (2,602), one of the easier corners under it.
- Only 3% of its best sellers are under 90 days old, fewer than in 88% of Books categories: established titles hold the list.
Top 10 Ethics best sellers
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The Screwtape Letters: From The Bestselling Author of the Chronicles of Narnia
by C. S. Lewis
- List rank#1
- Price$9.64
- Rating4.7
- Reviews20,878
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The C. S. Lewis Signature Classics: An Anthology of 8 C. S. Lewis Titles: Mere Christianity, The Screwtape Letters, Miracles, The Great Divorce, The ... The Abolition of Man, and The Four Loves
by C. S. Lewis
- List rank#3
- Price$28.09
- Rating4.9
- Reviews1,718
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The Power of Your Subconscious Mind
- List rank#5
- Price$12.99
- Rating4.6
- Reviews67,604
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The Divine Conspiracy: A Study of Spiritual Reality in Christian Thought
- List rank#6
- Price$13.51
- Rating4.7
- Reviews2,094
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If There Is No God: The Battle Over Who Defines Good and Evil
- List rank#7
- Price$18.38
- Rating4.7
- Reviews760
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The True Believer: Thoughts on the Nature of Mass Movements (Perennial Classics)
by Eric Hoffer
- List rank#8
- Price$10.39
- Rating4.6
- Reviews2,460
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The Game of Life and How to Play It: The Original Unabridged And Complete Edition (Florence Scovel Shinn Classics)
by Florence Scovel Shinn
- List rank#9
- Price$0.99
- Rating4.8
- Reviews5,262
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Street Smarts: Using Questions to Answer Christianity's Toughest Challenges
by Gregory Koukl
- List rank#10
- Price$12.79
- Rating4.8
- Reviews588
Same niche in Kindle eBooks: Ethics
FAQ
Is Ethics a good niche for Amazon KDP?
Its KDPTop opportunity score is 28/100, which makes it highly competitive. The median best seller has 289 reviews and sells for $14.25.
How many reviews do you need to rank in Ethics?
The median best seller has 289 reviews, and 24% of them have fewer than 100.
What do Ethics best sellers cost?
The median price is $14.25; half of the best sellers are priced between $10.18 and $21.60.
Can new books break into Ethics?
3% 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.