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John Carr: Amazon KDP author data

As of Nov 6, 2026, John Carr has 7 books on Amazon, 7 of them on a best-seller list in the last 30 days (best rank #6), mostly in Ancient, Medieval, Norway.

7Books on Amazon
7Listed in 30 days
4.2Average rating
Median price$17.99
Price range (middle 50%)$8.99 – $21.12
Median reviews30
Total reviews230
New books (30 days)0
Breakout books (30 days)0

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What stands out

  • 100% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
  • Median price $17.99, 301% above the median of their main category, Ancient.

John Carr's best-ranked books

  1. The Knights Hospitaller: A Military History of the Knights of St John book cover by John Carr

    The Knights Hospitaller: A Military History of the Knights of St John

    by John Carr

    • Price$14.99
    • Rating4.4
    • Reviews83

    View on Amazon · Full data on KDPTop

  2. The Komnene Dynasty: Byzantium's Struggle for Survival, 1057–1185 book cover by John Carr

    The Komnene Dynasty: Byzantium's Struggle for Survival, 1057–1185

    by John Carr

    • Price$2.99
    • Rating4.1
    • Reviews22

    View on Amazon · Full data on KDPTop

  3. The Defence and Fall of Greece, 1940–41 book cover by John Carr

    The Defence and Fall of Greece, 1940–41

    by John Carr

    • Price$2.99
    • Rating4.2
    • Reviews56

    View on Amazon · Full data on KDPTop

  4. Fighting Emperors of Byzantium book cover by John Carr

    Fighting Emperors of Byzantium

    by John Carr

    • Price$17.99
    • Rating4.4
    • Reviews37

    View on Amazon · Full data on KDPTop

  5. The Viking Saint: Olaf II of Norway book cover by John Carr

    The Viking Saint: Olaf II of Norway

    by John Carr

    • Price$19.99
    • Rating4.2
    • Reviews16
    • Published2022-07

    View on Amazon · Full data on KDPTop

  6. Immunopathology (Volume 107) (Advances in Virus Research, Volume 107) book cover by John Carr

    Immunopathology (Volume 107) (Advances in Virus Research, Volume 107)

    by John Carr

    • Price$171
    • Reviews-

    View on Amazon · Full data on KDPTop

  7. The Viking Saint: Olaf II of Norway book cover by John Carr

    The Viking Saint: Olaf II of Norway

    by John Carr

    • Price$22.25
    • Rating4.2
    • Reviews16

    View on Amazon · Full data on KDPTop

Main categories

FAQ

How many books does John Carr have on Amazon?

KDPTop tracks 7 of their books; 7 made an Amazon list in the last 30 days.

Which categories does John Carr publish in?

Their books chart most often in Ancient, Medieval, Norway.

How does John Carr price their books?

The median price is $17.99; half of the books cost $8.99–$21.12.

Has John Carr released new books recently?

0 new books in the last 30 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.