KDP categories · Top KDP authors

Williams Ryan: Amazon KDP author data

As of Nov 6, 2026, Williams Ryan has 3 books on Amazon, 3 of them on a best-seller list in the last 30 days (best rank #13), mostly in General Surgery, Surgery, Neurosurgery.

3Books on Amazon
3Listed in 30 days
-Average rating
Median price$9.99
Price range (middle 50%)$9.99 – $24.80
Median reviews-
Total reviews0
New books (30 days)3
Breakout books (30 days)1

What stands out

  • Median price $9.99, 82% below the median of their main category, General Surgery.
  • 3 new books in the last 30 days, 1 of them broke into a Best Sellers list.

Williams Ryan's best-ranked books

  1. Explained Spine Surgery : A Clinical Guide to Minimally Invasive Spine Surgery, Operative  book cover by Williams Ryan

    Explained Spine Surgery : A Clinical Guide to Minimally Invasive Spine Surgery, Operative Techniques, and Evidence-Based Management for Residents, Fellows, and Practicing Surgeons

    by Williams Ryan

    • Price$9.99
    • Reviews-
    • Published2026-08

    View on Amazon · Full data on KDPTop

  2. Explained Spine Surgery: A Clinical Guide to Minimally Invasive Spine Surgery, Operative T book cover by Williams Ryan

    Explained Spine Surgery: A Clinical Guide to Minimally Invasive Spine Surgery, Operative Techniques, and Evidence-Based Management for Residents, Fellows, and Practicing Surgeons

    by Williams Ryan

    • Price$39.60
    • Reviews-

    View on Amazon · Full data on KDPTop

  3. Explained Clinical Urogynecology : An Evidence-Based Guide to Female Pelvic Medicine, Pelv book cover by Williams Ryan

    Explained Clinical Urogynecology : An Evidence-Based Guide to Female Pelvic Medicine, Pelvic Floor Disorders, and Reconstructive Surgery for Residents and Fellows

    by Williams Ryan

    • Price$9.99
    • Reviews-
    • Published2026-08

    View on Amazon · Full data on KDPTop

Main categories

FAQ

How many books does Williams Ryan have on Amazon?

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

Which categories does Williams Ryan publish in?

Their books chart most often in General Surgery, Surgery, Neurosurgery.

How does Williams Ryan price their books?

The median price is $9.99; half of the books cost $9.99–$24.80.

Has Williams Ryan released new books recently?

3 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.