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Roger St Onge Jr: Amazon KDP author data

As of Nov 6, 2026, Roger St Onge Jr has 2 books on Amazon, 1 of them on a best-seller list in the last 30 days (best rank #1), mostly in New, Used & Rental Textbooks, Medicine, Allied Health Services.

2Books on Amazon
1Listed in 30 days
5.0Average rating
Median price$19.99
Price range (middle 50%)$19.99 – $19.99
Median reviews14
Total reviews28
New listings (30 days, incl. new editions)1
Breakout books (30 days)1

Roger St Onge Jr's best-ranked books

  1. Stop Guessing: The Clinical Reasoning System That Gets to Root Cause on Day One book cover by Roger St Onge Jr

    Stop Guessing: The Clinical Reasoning System That Gets to Root Cause on Day One

    by Roger St Onge Jr

    • Price$19.99
    • Rating5.0
    • Reviews14
    • Published2026-09

    View on Amazon · Full data on KDPTop

  2. Stop Guessing: The Clinical Reasoning System That Gets to Root Cause on Day One book cover by Roger St Onge Jr

    Stop Guessing: The Clinical Reasoning System That Gets to Root Cause on Day One

    by Roger St Onge Jr

    • Price-
    • Rating5.0
    • Reviews14
    • Published2026-09

    View on Amazon · Full data on KDPTop

Main categories

FAQ

How many books does Roger St Onge Jr have on Amazon?

KDPTop tracks 2 of their books; 1 made an Amazon list in the last 30 days.

Which categories does Roger St Onge Jr publish in?

Their books chart most often in New, Used & Rental Textbooks, Medicine, Allied Health Services.

How does Roger St Onge Jr price their books?

The median price is $19.99; half of the books cost $19.99–$19.99.

Has Roger St Onge Jr released new books recently?

1 new book 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.