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Robert Kirk: Amazon KDP author data

As of Nov 6, 2026, Robert Kirk has 6 books on Amazon, 6 of them on a best-seller list in the last 30 days (best rank #24), mostly in Supernatural, Celtic, Great Britain.

6Books on Amazon
6Listed in 30 days
4.0Average rating
Median price$7.99
Price range (middle 50%)$3.74 – $12.02
Median reviews98
Total reviews816
New listings (30 days, incl. new editions)2
Breakout books (30 days)2

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 $7.99, 46% below the median of their main category, Supernatural.

Robert Kirk's best-ranked books

  1. The Secret Commonwealth of Elves, Fauns & Fairies book cover by Robert Kirk

    The Secret Commonwealth of Elves, Fauns & Fairies

    by Robert Kirk

    • Price$5.99
    • Rating4.5
    • Reviews184

    View on Amazon · Full data on KDPTop

  2. The Secret Commonwealth of Elves, Fauns and Fairies: In Modern English book cover by Robert Kirk

    The Secret Commonwealth of Elves, Fauns and Fairies: In Modern English

    by Robert Kirk

    • Price$0.99
    • Rating3.5
    • Reviews12

    View on Amazon · Full data on KDPTop

  3. The Secret Commonwealth (Annotated): Of Elves, Fauns and Fairies book cover by Robert Kirk

    The Secret Commonwealth (Annotated): Of Elves, Fauns and Fairies

    by Robert Kirk

    • Price$2.99
    • Reviews-

    View on Amazon · Full data on KDPTop

  4. The Secret Commonwealth of Elves, Fauns and Fairies: In Modern English book cover by Robert Kirk

    The Secret Commonwealth of Elves, Fauns and Fairies: In Modern English

    by Robert Kirk

    • Price$9.99
    • Rating3.5
    • Reviews12

    View on Amazon · Full data on KDPTop

  5. The Secret Commonwealth (Annotated): Of Elves, Fauns and Fairies book cover by Robert Kirk

    The Secret Commonwealth (Annotated): Of Elves, Fauns and Fairies

    by Robert Kirk

    • Price$18.99
    • Reviews-

    View on Amazon · Full data on KDPTop

  6. The Secret Commonwealth of Elves, Fauns and Fairies: A Study in Folk-Lore and Psychical Re book cover by Robert Kirk

    The Secret Commonwealth of Elves, Fauns and Fairies: A Study in Folk-Lore and Psychical Research

    by Robert Kirk

    • Price$12.69
    • Rating4.4
    • Reviews608

    View on Amazon · Full data on KDPTop

Main categories

FAQ

How many books does Robert Kirk have on Amazon?

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

Which categories does Robert Kirk publish in?

Their books chart most often in Supernatural, Celtic, Great Britain.

How does Robert Kirk price their books?

The median price is $7.99; half of the books cost $3.74–$12.02.

Has Robert Kirk 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.