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Joshua Harkin: Amazon KDP author data

As of Nov 6, 2026, Joshua Harkin has 6 books on Amazon, 3 of them on a best-seller list in the last 30 days (best rank #10), mostly in War, Military, War & Military.

6Books on Amazon
3Listed in 30 days
4.4Average rating
Median price$2.99
Price range (middle 50%)$1.99 – $2.99
Median reviews1,132
Total reviews6,247
New books (30 days)1
Breakout books (30 days)1

View on Amazon

What stands out

  • 50% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
  • Median price $2.99, 40% below the median of their main category, War.

Joshua Harkin's best-ranked books

  1. Hard Rain (Ranger Thrillers Book 7) book cover by Joshua Harkin

    Hard Rain (Ranger Thrillers Book 7)

    by Joshua Harkin

    • Price$2.99
    • Rating4.4
    • Reviews128
    • Published2026-10

    View on Amazon · Full data on KDPTop

  2. Exit Wound (Ranger Thrillers Book 6) book cover by Joshua Harkin

    Exit Wound (Ranger Thrillers Book 6)

    by Joshua Harkin

    • Price$0.99
    • Rating4.5
    • Reviews818

    View on Amazon · Full data on KDPTop

  3. Blood Auction (Ranger Thrillers Book 2) book cover by Joshua Harkin

    Blood Auction (Ranger Thrillers Book 2)

    by Joshua Harkin

    • Price$2.99
    • Rating4.4
    • Reviews1,669

    View on Amazon · Full data on KDPTop

  4. Winter Kill (Ranger Thrillers Book 3) book cover by Joshua Harkin

    Winter Kill (Ranger Thrillers Book 3)

    by Joshua Harkin

    • Price$0
    • Rating4.4
    • Reviews1,368
    • Published2025-11

    View on Amazon · Full data on KDPTop

  5. Free Fall (Ranger Thrillers Book 4) book cover by Joshua Harkin

    Free Fall (Ranger Thrillers Book 4)

    by Joshua Harkin

    • Price$0
    • Rating4.5
    • Reviews1,217
    • Published2026-01

    View on Amazon · Full data on KDPTop

  6. Bad Lands (Ranger Thrillers Book 5) book cover by Joshua Harkin

    Bad Lands (Ranger Thrillers Book 5)

    by Joshua Harkin

    • Price$0
    • Rating4.4
    • Reviews1,047
    • Published2026-04

    View on Amazon · Full data on KDPTop

Main categories

FAQ

How many books does Joshua Harkin have on Amazon?

KDPTop tracks 6 of their books; 3 made an Amazon list in the last 30 days.

Which categories does Joshua Harkin publish in?

Their books chart most often in War, Military, War & Military.

How does Joshua Harkin price their books?

The median price is $2.99; half of the books cost $1.99–$2.99.

Has Joshua Harkin released new books recently?

1 new book in the last 30 days, 1 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.