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John O'Reilly: Amazon KDP author data

As of Nov 6, 2026, John O'Reilly has 51 books on Amazon, 26 of them on a best-seller list in the last 30 days (best rank #2), mostly in Brass, Clarinets, Theory.

51Books on Amazon
26Listed in 30 days
4.6Average rating
Median price$11.99
Price range (middle 50%)$9.99 – $11.99
Median reviews59
Total reviews5,752
New books (30 days)0
Breakout books (30 days)0

View on Amazon

What stands out

  • 51% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.

John O'Reilly's best-ranked books

  1. Accent on Achievement (Trumpet) book cover by John O'Reilly

    Accent on Achievement (Trumpet)

    by John O'Reilly

    • Price$11.99
    • Rating4.8
    • Reviews830

    View on Amazon · Full data on KDPTop

  2. Accent on Achievement, B flat Clarinet Book 1 book cover by John O'Reilly

    Accent on Achievement, B flat Clarinet Book 1

    by John O'Reilly

    • Price$11.99
    • Rating4.8
    • Reviews822

    View on Amazon · Full data on KDPTop

  3. Accent on Achievement, Book 1 Eb Alto Saxophone book cover by John O'Reilly

    Accent on Achievement, Book 1 Eb Alto Saxophone

    by John O'Reilly

    • Price$11.99
    • Rating4.7
    • Reviews529

    View on Amazon · Full data on KDPTop

  4. Accent on Achievement, Book 1: Trombone book cover by John O'Reilly

    Accent on Achievement, Book 1: Trombone

    by John O'Reilly

    • Price$11.99
    • Rating4.8
    • Reviews371

    View on Amazon · Full data on KDPTop

  5. Accent on Achievement Book 1 Horn in F book cover by John O'Reilly

    Accent on Achievement Book 1 Horn in F

    by John O'Reilly

    • Price$11.99
    • Rating4.8
    • Reviews100

    View on Amazon · Full data on KDPTop

  6. Accent on Achievement, Bk 1: Combined Percussion---S.D., B.D., Access. & Mallet Percussion book cover by John O'Reilly

    Accent on Achievement, Bk 1: Combined Percussion---S.D., B.D., Access. & Mallet Percussion, Book & Online Audio/Software

    by John O'Reilly

    • Price$16.99
    • Rating4.8
    • Reviews234

    View on Amazon · Full data on KDPTop

  7. Christmas and Chanukah Ensembles book cover by John O'Reilly

    Christmas and Chanukah Ensembles

    by John O'Reilly

    • Price$6.95
    • Rating4.8
    • Reviews25

    View on Amazon · Full data on KDPTop

  8. Accent on Achievement, Trombone: A Comprehensive Band Method that Develops Creativity and book cover by John O'Reilly

    Accent on Achievement, Trombone: A Comprehensive Band Method that Develops Creativity and Musicianship, Book 2

    by John O'Reilly

    • Price$11.99
    • Rating4.8
    • Reviews120

    View on Amazon · Full data on KDPTop

  9. Accent on Achievement: A Comprehensive Band Method That Develops Creativity and Musiciansh book cover by John O'Reilly

    Accent on Achievement: A Comprehensive Band Method That Develops Creativity and Musicianship, Bflat Clarinet, Book 2

    by John O'Reilly

    • Price$11.99
    • Rating4.8
    • Reviews201

    View on Amazon · Full data on KDPTop

  10. Accent on Achievement, Trombone Book 3 book cover by John O'Reilly

    Accent on Achievement, Trombone Book 3

    by John O'Reilly

    • Price$7.99
    • Rating4.6
    • Reviews25

    View on Amazon · Full data on KDPTop

Main categories

FAQ

How many books does John O'Reilly have on Amazon?

KDPTop tracks 51 of their books; 26 made an Amazon list in the last 30 days.

Which categories does John O'Reilly publish in?

Their books chart most often in Brass, Clarinets, Theory.

How does John O'Reilly price their books?

The median price is $11.99; half of the books cost $9.99–$11.99.

Has John O'Reilly released new books recently?

0 new books in the last 30 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.