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Ryan Graudin: Amazon KDP author data

As of Nov 6, 2026, Ryan Graudin has 17 books on Amazon, 16 of them on a best-seller list in the last 30 days (best rank #5), mostly in Military, Europe, Military & Wars.

17Books on Amazon
16Listed in 30 days
4.4Average rating
Median price$9.99
Price range (middle 50%)$8.41 – $22.74
Median reviews495
Total reviews8,368
New books (30 days)1
Breakout books (30 days)0

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What stands out

  • 94% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.

Ryan Graudin's best-ranked books

  1. Invictus book cover by Ryan Graudin

    Invictus

    by Ryan Graudin

    • Price$1.99
    • Rating4.3
    • Reviews361

    View on Amazon · Full data on KDPTop

  2. Blood for Blood (Wolf by Wolf, 2) book cover by Ryan Graudin

    Blood for Blood (Wolf by Wolf, 2)

    by Ryan Graudin

    • Price-
    • Rating4.6
    • Reviews495

    View on Amazon · Full data on KDPTop

  3. Blood for Blood (Wolf by Wolf Book 2) book cover by Ryan Graudin

    Blood for Blood (Wolf by Wolf Book 2)

    by Ryan Graudin

    • Price$9.99
    • Rating4.6
    • Reviews495

    View on Amazon · Full data on KDPTop

  4. Wolf by Wolf: One girl’s mission to win a race and kill Hitler book cover by Ryan Graudin

    Wolf by Wolf: One girl’s mission to win a race and kill Hitler

    by Ryan Graudin

    • Price$9.99
    • Rating4.5
    • Reviews1,030

    View on Amazon · Full data on KDPTop

  5. Wolf by Wolf: One girl’s mission to win a race and kill Hitler book cover by Ryan Graudin

    Wolf by Wolf: One girl’s mission to win a race and kill Hitler

    by Ryan Graudin

    • Price-
    • Rating4.5
    • Reviews1,031

    View on Amazon · Full data on KDPTop

  6. Wolf by Wolf: One girl’s mission to win a race and kill Hitler book cover by Ryan Graudin

    Wolf by Wolf: One girl’s mission to win a race and kill Hitler

    by Ryan Graudin

    • Price$8.41
    • Rating4.5
    • Reviews1,030
    • Published2016-10

    View on Amazon · Full data on KDPTop

  7. The Girl Who Kept the Castle: When a ghost wizard loses his magic, only a groundskeeper's  book cover by Ryan Graudin

    The Girl Who Kept the Castle: When a ghost wizard loses his magic, only a groundskeeper's daughter can save an enchanted castle from a Shadow Queen's spy.

    by Ryan Graudin

    • Price$4.99
    • Rating4.5
    • Reviews36

    View on Amazon · Full data on KDPTop

  8. Wolf by Wolf book cover by Ryan Graudin

    Wolf by Wolf

    by Ryan Graudin

    • Price$22.74
    • Rating4.5
    • Reviews1,031

    View on Amazon · Full data on KDPTop

  9. Wolf by Wolf: One girl’s mission to win a race and kill Hitler book cover by Ryan Graudin

    Wolf by Wolf: One girl’s mission to win a race and kill Hitler

    by Ryan Graudin

    • Price$23.09
    • Rating4.5
    • Reviews1,031

    View on Amazon · Full data on KDPTop

  10. Invictus book cover by Ryan Graudin

    Invictus

    by Ryan Graudin

    • Price$26.39
    • Rating4.3
    • Reviews361

    View on Amazon · Full data on KDPTop

Main categories

FAQ

How many books does Ryan Graudin have on Amazon?

KDPTop tracks 17 of their books; 16 made an Amazon list in the last 30 days.

Which categories does Ryan Graudin publish in?

Their books chart most often in Military, Europe, Military & Wars.

How does Ryan Graudin price their books?

The median price is $9.99; half of the books cost $8.41–$22.74.

Has Ryan Graudin released new books recently?

1 new book 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.