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Penn Holderness: Amazon KDP author data

Penn Holderness has 8 books on Amazon, 6 of them on a best-seller list in the last 30 days (best rank #1), mostly in Children & Adolescent's Health, Learning Disorders, Disability.

8Books on Amazon
6Listed in 30 days
4.7Average rating
Median price$14.55
Price range (middle 50%)$12 – $19.17
Median reviews1,836
Total reviews8,171
New books (30 days)1
Breakout books (30 days)1

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What stands out

  • 75% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.

Penn Holderness's best-ranked books

  1. ADHD is Awesome: A Guide to (Mostly) Thriving with ADHD book cover by Penn Holderness

    ADHD is Awesome: A Guide to (Mostly) Thriving with ADHD

    by Penn Holderness

    • Price$19.99
    • Rating4.7
    • Reviews1,836

    View on Amazon · Full data on KDPTop

  2. ADHD is Awesome: A Guide To (Mostly) Thriving With ADHD book cover by Penn Holderness

    ADHD is Awesome: A Guide To (Mostly) Thriving With ADHD

    by Penn Holderness

    • Price$16.12
    • Rating4.7
    • Reviews1,836

    View on Amazon · Full data on KDPTop

  3. Get It Done & Have Fun!: ADHD Hacks for Awesome Kids (ADHD Kids Are Awesome, 2) book cover by Penn Holderness

    Get It Done & Have Fun!: ADHD Hacks for Awesome Kids (ADHD Kids Are Awesome, 2)

    by Penn Holderness

    • Price$18.91
    • Rating4.8
    • Reviews31

    View on Amazon · Full data on KDPTop

  4. All You Can Be with ADHD (ADHD Kids Are Awesome, 1) book cover by Penn Holderness

    All You Can Be with ADHD (ADHD Kids Are Awesome, 1)

    by Penn Holderness

    • Price$12
    • Rating4.7
    • Reviews250

    View on Amazon · Full data on KDPTop

  5. ADHD Is Awesome: A Guide to (Mostly) Thriving with ADHD book cover by Penn Holderness

    ADHD Is Awesome: A Guide to (Mostly) Thriving with ADHD

    by Penn Holderness

    • Price$19.95
    • Rating4.7
    • Reviews1,836

    View on Amazon · Full data on KDPTop

  6. All You Can Be with ADHD (ADHD Kids Are Awesome Book 1) book cover by Penn Holderness

    All You Can Be with ADHD (ADHD Kids Are Awesome Book 1)

    by Penn Holderness

    • Price$12.99
    • Rating4.7
    • Reviews249

    View on Amazon · Full data on KDPTop

  7. Everybody Fights: So Why Not Get Better at It? book cover by Penn Holderness

    Everybody Fights: So Why Not Get Better at It?

    by Penn Holderness

    • Price$0.99
    • Rating4.8
    • Reviews2,134
    • Published2021-03

    View on Amazon · Full data on KDPTop

  8. ADHD is Awesome Young Readers Edition book cover by Penn Holderness

    ADHD is Awesome Young Readers Edition

    by Penn Holderness

    • Price$11.99
    • Reviews-

    View on Amazon · Full data on KDPTop

Main categories

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.