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J M Roberts: Amazon KDP author data

As of Nov 6, 2026, J M Roberts has 3 books on Amazon, 2 of them on a best-seller list in the last 30 days (best rank #1), mostly in Civilization & Culture, India, Asian.

3Books on Amazon
2Listed in 30 days
4.4Average rating
Median price$25.16
Price range (middle 50%)$20.57 – $32.97
Median reviews1,292
Total reviews3,878
New books (30 days)0
Breakout books (30 days)0

View on Amazon

What stands out

  • Median price $25.16, 67% above the median of their main category, Civilization & Culture.

J M Roberts's best-ranked books

  1. The Penguin History of the World: 6th edition book cover by J M Roberts

    The Penguin History of the World: 6th edition

    by J M Roberts

    • Price$15.99
    • Rating4.4
    • Reviews1,294
    • Published2013-03

    View on Amazon · Full data on KDPTop

  2. The Penguin History of the World: Sixth Edition book cover by J M Roberts

    The Penguin History of the World: Sixth Edition

    by J M Roberts

    • Price$25.16
    • Rating4.4
    • Reviews1,294

    View on Amazon · Full data on KDPTop

  3. The History of the World book cover by J M Roberts

    The History of the World

    by J M Roberts

    • Price$40.77
    • Rating4.4
    • Reviews1,292
    • Published2013-05

    View on Amazon · Full data on KDPTop

Main categories

FAQ

How many books does J M Roberts have on Amazon?

KDPTop tracks 3 of their books; 2 made an Amazon list in the last 30 days.

Which categories does J M Roberts publish in?

Their books chart most often in Civilization & Culture, India, Asian.

How does J M Roberts price their books?

The median price is $25.16; half of the books cost $20.57–$32.97.

Has J M Roberts 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.