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Ethics (Religious Studies & Reference, Kindle eBooks): Amazon KDP category data

Amazon Kindle eBooks Best Sellers data for Ethics (Religious Studies & Reference, Kindle eBooks), updated Nov 2, 2026: median price $11.99, median 134 reviews, average rating 4.6 and a KDPTop opportunity score of 29/100 (highly competitive).

29Opportunity / 100
$11.99Median price
134Median reviews
Price range (middle 50%)$7.74 – $15.83
Average rating4.6
New releases (90 days)2%
Books on the list100
StoreKindle eBooks

What stands out

  • Its median reviews are 9% of the parent category Religious Studies & Reference (1,436), one of the easier corners under it.
  • Only 2% of its best sellers are under 90 days old, fewer than in 93% of Kindle eBooks categories: established titles hold the list.
  • At $11.99 its median price beats 93% of Kindle eBooks categories, leaving more margin per copy.

Top 10 Ethics best sellers

  1. The Screwtape Letters book cover by C. S. Lewis

    The Screwtape Letters

    by C. S. Lewis

    • List rank#1
    • Price$14.99
    • Rating4.7
    • Reviews20,878

    View on Amazon · Full data on KDPTop

  2. The Game of Life and How to Play It: The Original Unabridged And Complete Edition (Florenc book cover by Florence Scovel Shinn

    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#2
    • Price$0.99
    • Rating4.8
    • Reviews5,262

    View on Amazon · Full data on KDPTop

  3. Hinds' Feet on High Places book cover by Hannah Hurnard

    Hinds' Feet on High Places

    by Hannah Hurnard

    • List rank#3
    • Price$0.99
    • Rating4.8
    • Reviews2,087

    View on Amazon · Full data on KDPTop

  4. The Problem of Pain book cover by C. S. Lewis

    The Problem of Pain

    by C. S. Lewis

    • List rank#4
    • Price$0.99
    • Rating4.4
    • Reviews158

    View on Amazon · Full data on KDPTop

  5. The True Believer: Thoughts on the Nature of Mass Movements (Perennial Classics) book cover by Eric Hoffer

    The True Believer: Thoughts on the Nature of Mass Movements (Perennial Classics)

    by Eric Hoffer

    • List rank#5
    • Price$14.99
    • Rating4.6
    • Reviews2,460

    View on Amazon · Full data on KDPTop

  6. The Divine Conspiracy: A Study of Spiritual Reality in Christian Thought book cover by Dallas Willard

    The Divine Conspiracy: A Study of Spiritual Reality in Christian Thought

    by Dallas Willard

    • List rank#6
    • Price$19.99
    • Rating4.7
    • Reviews2,094

    View on Amazon · Full data on KDPTop

  7. St. Augustine on Sin: Meditations Drawn from Personal Experiences (Grapevine Press) book cover by Augustine

    St. Augustine on Sin: Meditations Drawn from Personal Experiences (Grapevine Press)

    by Augustine

    • List rank#7
    • Price$0.19
    • Rating4.5
    • Reviews9

    View on Amazon · Full data on KDPTop

  8. The Field: The Quest for the Secret Force of the Universe book cover by Lynne McTaggart

    The Field: The Quest for the Secret Force of the Universe

    by Lynne McTaggart

    • List rank#8
    • Price$7.99
    • Rating4.5
    • Reviews1,972

    View on Amazon · Full data on KDPTop

  9. The Screwtape Letters: Annotated Edition book cover by C. S. Lewis

    The Screwtape Letters: Annotated Edition

    by C. S. Lewis

    • List rank#9
    • Price$14.99
    • Rating4.8
    • Reviews1,588

    View on Amazon · Full data on KDPTop

  10. The Alchemy of Happiness book cover by Al Ghazali

    The Alchemy of Happiness

    by Al Ghazali

    • List rank#10
    • Price$0.29
    • Rating4.5
    • Reviews307

    View on Amazon · Full data on KDPTop

Same niche in Books: Ethics

FAQ

Is Ethics a good niche for Amazon KDP?

Its KDPTop opportunity score is 29/100, which makes it highly competitive. The median best seller has 134 reviews and sells for $11.99.

How many reviews do you need to rank in Ethics?

The median best seller has 134 reviews, and 49% of them have fewer than 100.

What do Ethics best sellers cost?

The median price is $11.99; half of the best sellers are priced between $7.74 and $15.83.

Can new books break into Ethics?

2% 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.