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Detectives (Mysteries & Thrillers, Kindle eBooks): Amazon KDP category data

Amazon Kindle eBooks Best Sellers data for Detectives (Mysteries & Thrillers, Kindle eBooks), updated Nov 3, 2026: median price $6.99, median 532 reviews, average rating 4.4 and a KDPTop opportunity score of 18/100 (highly competitive).

18Opportunity / 100
$6.99Median price
532Median reviews
Price range (middle 50%)$2.99 – $8.99
Average rating4.4
New releases (90 days)7%
Books on the list100
StoreKindle eBooks

What stands out

  • Its median reviews are 12% of the parent category Mysteries & Thrillers (4,418), one of the easier corners under it.
  • Its review barrier is higher than in 81% of Kindle eBooks categories: the median best seller has 532 reviews, so new books need time to build up.
  • Prices spread wide: the middle half runs from $2.99 to $8.99, so budget editions and premium or boxed sets sell side by side.

Top 10 Detectives best sellers

  1. The Naturals book cover by Jennifer Lynn Barnes

    The Naturals

    by Jennifer Lynn Barnes

    • List rank#1
    • Price$9.99
    • Rating4.4
    • Reviews29,451

    View on Amazon · Full data on KDPTop

  2. Killer Instinct (The Naturals Book 2) book cover by Jennifer Lynn Barnes

    Killer Instinct (The Naturals Book 2)

    by Jennifer Lynn Barnes

    • List rank#2
    • Price$9.99
    • Rating4.4
    • Reviews20,271

    View on Amazon · Full data on KDPTop

  3. Dangerous Impulses (The Naturals Book 5) book cover by Jennifer Lynn Barnes

    Dangerous Impulses (The Naturals Book 5)

    by Jennifer Lynn Barnes

    • List rank#3
    • Price$12.99
    • Reviews-

    View on Amazon · Full data on KDPTop

  4. All In (The Naturals Book 3) book cover by Jennifer Lynn Barnes

    All In (The Naturals Book 3)

    by Jennifer Lynn Barnes

    • List rank#4
    • Price$9.99
    • Rating4.5
    • Reviews15,200

    View on Amazon · Full data on KDPTop

  5. Bad Blood (The Naturals Book 4) book cover by Jennifer Lynn Barnes

    Bad Blood (The Naturals Book 4)

    by Jennifer Lynn Barnes

    • List rank#5
    • Price$9.99
    • Rating4.6
    • Reviews11,987

    View on Amazon · Full data on KDPTop

  6. Marina book cover by Carlos Ruiz Zafon

    Marina

    by Carlos Ruiz Zafon

    • List rank#6
    • Price$1.99
    • Rating4.4
    • Reviews2,891

    View on Amazon · Full data on KDPTop

  7. This is Our Story book cover by Ashley Elston

    This is Our Story

    by Ashley Elston

    • List rank#7
    • Price$1.99
    • Rating4.4
    • Reviews1,582

    View on Amazon · Full data on KDPTop

  8. It's Christmas Crime!: An Advent Romance book cover by Anouk Filippini

    It's Christmas Crime!: An Advent Romance

    by Anouk Filippini

    • List rank#8
    • Price$9.99
    • Rating4.8
    • Reviews8

    View on Amazon · Full data on KDPTop

  9. One of Us Is Lying book cover by Karen M. McManus

    One of Us Is Lying

    by Karen M. McManus

    • List rank#9
    • Price$5.99
    • Rating4.5
    • Reviews49,398

    View on Amazon · Full data on KDPTop

  10. The Cellar: A Gripping Kidnapping Thriller book cover by Natasha Preston

    The Cellar: A Gripping Kidnapping Thriller

    by Natasha Preston

    • List rank#10
    • Price$6.72
    • Rating4.3
    • Reviews12,823

    View on Amazon · Full data on KDPTop

FAQ

Is Detectives a good niche for Amazon KDP?

Its KDPTop opportunity score is 18/100, which makes it highly competitive. The median best seller has 532 reviews and sells for $6.99.

How many reviews do you need to rank in Detectives?

The median best seller has 532 reviews, and 19% of them have fewer than 100.

What do Detectives best sellers cost?

The median price is $6.99; half of the best sellers are priced between $2.99 and $8.99.

Can new books break into Detectives?

7% of the current best sellers were released in the last 90 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.