KDP categories · Top KDP authors

Ryan J. Kennedy: Amazon KDP author data

As of Nov 6, 2026, Ryan J. Kennedy has 2 books on Amazon, 2 of them on a best-seller list in the last 30 days (best rank #75), mostly in Clinical Psychology, Research & Theory, Developmental Psychology.

2Books on Amazon
2Listed in 30 days
-Average rating
Median price$80.09
Price range (middle 50%)$75.14 – $85.04
Median reviews-
Total reviews0
New listings (30 days, incl. new editions)2
Breakout books (30 days)1

What stands out

  • Median price $80.09, 702% above the median of their main category, Clinical Psychology.

Ryan J. Kennedy's best-ranked books

  1. Assessment & Treatment of ADHD: A Practical Guide for Nurse Practitioners book cover by Ryan J. Kennedy

    Assessment & Treatment of ADHD: A Practical Guide for Nurse Practitioners

    by Ryan J. Kennedy

    • Price$89.99
    • Reviews-

    View on Amazon · Full data on KDPTop

  2. Assessment & Treatment of ADHD: A Practical Guide for Nurse Practitioners (Nursing (R0)) book cover by Ryan J. Kennedy

    Assessment & Treatment of ADHD: A Practical Guide for Nurse Practitioners (Nursing (R0))

    by Ryan J. Kennedy

    • Price$70.19
    • Reviews-

    View on Amazon · Full data on KDPTop

Main categories

FAQ

How many books does Ryan J. Kennedy have on Amazon?

KDPTop tracks 2 of their books; 2 made an Amazon list in the last 30 days.

Which categories does Ryan J. Kennedy publish in?

Their books chart most often in Clinical Psychology, Research & Theory, Developmental Psychology.

How does Ryan J. Kennedy price their books?

The median price is $80.09; half of the books cost $75.14–$85.04.

Has Ryan J. Kennedy released new books recently?

2 new books 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.