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John Vader: Amazon KDP author data

John Vader has 3 books on Amazon, 3 of them on a best-seller list in the last 30 days (best rank #2), mostly in World War II, Military, Australia & Oceania.

3Books on Amazon
3Listed in 30 days
4.8Average rating
Median price$0.99
Price range (middle 50%)$0.99 – $0.99
Median reviews10
Total reviews10
New books (30 days)3
Breakout books (30 days)3

What stands out

  • Median price $0.99, 89% below the median of their main category, World War II.
  • 3 new books in the last 30 days, 3 of them broke into a Best Sellers list.

John Vader's best-ranked books

  1. New Guinea: The Tide is Stemmed (Major Battles of World War Two) book cover by John Vader

    New Guinea: The Tide is Stemmed (Major Battles of World War Two)

    by John Vader

    • Price$0.99
    • Rating4.8
    • Reviews10
    • Published2026-12

    View on Amazon · Full data on KDPTop

  2. Anzac: The Dramatic History of the Great Front-Line Campaigners book cover by John Vader

    Anzac: The Dramatic History of the Great Front-Line Campaigners

    by John Vader

    • Price$0.99
    • Reviews-
    • Published2026-11

    View on Amazon · Full data on KDPTop

  3. The Fleet Without a Friend: Britain’s Attack on the French Fleet in 1940 (Great Naval Batt book cover by John Vader

    The Fleet Without a Friend: Britain’s Attack on the French Fleet in 1940 (Great Naval Battles of World War Two)

    by John Vader

    • Price$0.99
    • Reviews-
    • Published2027-01

    View on Amazon · Full data on KDPTop

Main categories

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.