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Julian Hartfield: Amazon KDP author data

As of Nov 6, 2026, Julian Hartfield has 23 books on Amazon, 14 of them on a best-seller list in the last 30 days (best rank #6), mostly in Games & Activities, Logic, Hobbies & Games.

23Books on Amazon
14Listed in 30 days
4.4Average rating
Median price$14.99
Price range (middle 50%)$7.99 – $14.99
Median reviews22
Total reviews559
New books (30 days)4
Breakout books (30 days)4

View on Amazon

What stands out

  • 61% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
  • Median price $14.99, 36% above the median of their main category, Games & Activities.
  • 4 new books in the last 30 days, 4 of them broke into a Best Sellers list.

Julian Hartfield's best-ranked books

  1. Detective Logic Grid Puzzles: 60 Murder Mystery Challenges for True Crime Fans and Puzzle  book cover by Julian Hartfield

    Detective Logic Grid Puzzles: 60 Murder Mystery Challenges for True Crime Fans and Puzzle Lovers

    by Julian Hartfield

    • Price$7.99
    • Rating3.4
    • Reviews49

    View on Amazon · Full data on KDPTop

  2. The Last Location: A Logic Mystery Puzzle to Eliminate 20,123 Places Until Only One Surviv book cover by Julian Hartfield

    The Last Location: A Logic Mystery Puzzle to Eliminate 20,123 Places Until Only One Survives

    by Julian Hartfield

    • Price$7.99
    • Rating4.5
    • Reviews18

    View on Amazon · Full data on KDPTop

  3. Murder Mystery Logic Puzzle: Find the Killer Among 3,072 Wizards book cover by Julian Hartfield

    Murder Mystery Logic Puzzle: Find the Killer Among 3,072 Wizards

    by Julian Hartfield

    • Price$7.99
    • Rating4.6
    • Reviews16

    View on Amazon · Full data on KDPTop

  4. The Perfect Murder Puzzle: 20 Logic Challenges To Solve A Murder Mystery And Think Like A  book cover by Julian Hartfield

    The Perfect Murder Puzzle: 20 Logic Challenges To Solve A Murder Mystery And Think Like A Detective

    by Julian Hartfield

    • Price$5.99
    • Rating4.6
    • Reviews25

    View on Amazon · Full data on KDPTop

  5. The Last Location: A Logic Mystery Puzzle to Eliminate 20,123 Places Until Only One Surviv book cover by Julian Hartfield

    The Last Location: A Logic Mystery Puzzle to Eliminate 20,123 Places Until Only One Survives

    by Julian Hartfield

    • Price$14.99
    • Rating4.5
    • Reviews19

    View on Amazon · Full data on KDPTop

  6. Detective Logic Grid Puzzles 2: 60 Murder & Crime Mystery Challenges with History’s Most I book cover by Julian Hartfield

    Detective Logic Grid Puzzles 2: 60 Murder & Crime Mystery Challenges with History’s Most Infamous Suspects

    by Julian Hartfield

    • Price$7.99
    • Rating5.0
    • Reviews15

    View on Amazon · Full data on KDPTop

  7. Baseball Trivia: 100 Fun Trivia Questions, Amazing Stories, and Surprising Facts for Kids, book cover by Julian Hartfield

    Baseball Trivia: 100 Fun Trivia Questions, Amazing Stories, and Surprising Facts for Kids, Teens, and Baseball Fans

    by Julian Hartfield

    • Price$14.99
    • Rating4.6
    • Reviews46

    View on Amazon · Full data on KDPTop

  8. The Last Location 2: A Logic Mystery Puzzle to Eliminate 21,433 Locations Until Only One S book cover by Julian Hartfield

    The Last Location 2: A Logic Mystery Puzzle to Eliminate 21,433 Locations Until Only One Survives

    by Julian Hartfield

    • Price$14.99
    • Rating5.0
    • Reviews1

    View on Amazon · Full data on KDPTop

  9. Murder Mystery Logic Puzzle: Find the Killer Among 3,072 Wizards book cover by Julian Hartfield

    Murder Mystery Logic Puzzle: Find the Killer Among 3,072 Wizards

    by Julian Hartfield

    • Price$14.99
    • Rating4.6
    • Reviews17

    View on Amazon · Full data on KDPTop

  10. Detective Logic Grid Puzzles 3: 60 Murder & Crime Mystery Challenges Set in a Futuristic,  book cover by Julian Hartfield

    Detective Logic Grid Puzzles 3: 60 Murder & Crime Mystery Challenges Set in a Futuristic, Glitching Timeline

    by Julian Hartfield

    • Price$7.99
    • Rating3.5
    • Reviews5

    View on Amazon · Full data on KDPTop

Main categories

FAQ

How many books does Julian Hartfield have on Amazon?

KDPTop tracks 23 of their books; 14 made an Amazon list in the last 30 days.

Which categories does Julian Hartfield publish in?

Their books chart most often in Games & Activities, Logic, Hobbies & Games.

How does Julian Hartfield price their books?

The median price is $14.99; half of the books cost $7.99–$14.99.

Has Julian Hartfield released new books recently?

4 new books in the last 30 days, 4 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.