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Ralph Martin: Amazon KDP author data

As of Nov 6, 2026, Ralph Martin has 6 books on Amazon, 4 of them on a best-seller list in the last 30 days (best rank #5), mostly in Catholicism, Christian Denominations & Sects, Mariology.

6Books on Amazon
4Listed in 30 days
4.9Average rating
Median price$18.69
Price range (middle 50%)$17.04 – $22.62
Median reviews53
Total reviews1,610
New listings (30 days, incl. new editions)2
Breakout books (30 days)2

View on Amazon

What stands out

  • 67% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
  • Median price $18.69, 47% above the median of their main category, Catholicism.

Ralph Martin's best-ranked books

  1. The Coming Judgment: Are We Ready? book cover by Ralph Martin

    The Coming Judgment: Are We Ready?

    by Ralph Martin

    • Price$17.95
    • Rating4.9
    • Reviews53

    View on Amazon · Full data on KDPTop

  2. Hearts Beating as One: The Spiritual Heart of Fatima book cover by Ralph Martin

    Hearts Beating as One: The Spiritual Heart of Fatima

    by Ralph Martin

    • Price$16.73
    • Rating5.0
    • Reviews4
    • Published2026-10

    View on Amazon · Full data on KDPTop

  3. Hearts Beating as One: The Spiritual Heart of Fatima book cover by Ralph Martin

    Hearts Beating as One: The Spiritual Heart of Fatima

    by Ralph Martin

    • Price$16.73
    • Rating5.0
    • Reviews4

    View on Amazon · Full data on KDPTop

  4. The Fulfillment of All Desire: A Guidebook to God Based on the Wisdom of the Saints book cover by Ralph Martin

    The Fulfillment of All Desire: A Guidebook to God Based on the Wisdom of the Saints

    by Ralph Martin

    • Price$23.55
    • Rating4.8
    • Reviews748

    View on Amazon · Full data on KDPTop

  5. The Fulfillment of All Desire book cover by Ralph Martin

    The Fulfillment of All Desire

    by Ralph Martin

    • Price$23.69
    • Rating4.8
    • Reviews748
    • Published2006-07

    View on Amazon · Full data on KDPTop

  6. The Coming Judgment: Are We Ready? book cover by Ralph Martin

    The Coming Judgment: Are We Ready?

    by Ralph Martin

    • Price$19.43
    • Rating4.9
    • Reviews53
    • Published2026-06

    View on Amazon · Full data on KDPTop

Main categories

FAQ

How many books does Ralph Martin have on Amazon?

KDPTop tracks 6 of their books; 4 made an Amazon list in the last 30 days.

Which categories does Ralph Martin publish in?

Their books chart most often in Catholicism, Christian Denominations & Sects, Mariology.

How does Ralph Martin price their books?

The median price is $18.69; half of the books cost $17.04–$22.62.

Has Ralph Martin released new books recently?

2 new books in the last 30 days, 2 of which reached a Best Sellers list.

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.