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Sarah Janssen: Amazon KDP author data

Sarah Janssen has 17 books on Amazon, 17 of them on a best-seller list in the last 30 days (best rank #2), mostly in Almanacs, Almanacs & Yearbooks, Encyclopedias.

17Books on Amazon
17Listed in 30 days
4.7Average rating
Median price$12.99
Price range (middle 50%)$10.99 – $12.99
Median reviews797
Total reviews13,848
New books (30 days)2
Breakout books (30 days)2

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What stands out

  • 100% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
  • Median price $12.99, 45% above the median of their main category, Almanacs.

Sarah Janssen's best-ranked books

  1. The World Almanac and Book of Facts 2027 book cover by Sarah Janssen

    The World Almanac and Book of Facts 2027

    by Sarah Janssen

    • Price$16.77
    • Reviews-
    • Published2026-12

    View on Amazon · Full data on KDPTop

  2. The World Almanac and Book of Facts 2026 book cover by Sarah Janssen

    The World Almanac and Book of Facts 2026

    by Sarah Janssen

    • Price$12.99
    • Rating4.8
    • Reviews475

    View on Amazon · Full data on KDPTop

  3. The World Almanac and Book of Facts 2027 book cover by Sarah Janssen

    The World Almanac and Book of Facts 2027

    by Sarah Janssen

    • Price$12.99
    • Reviews-

    View on Amazon · Full data on KDPTop

  4. The World Almanac and Book of Facts 2026 book cover by Sarah Janssen

    The World Almanac and Book of Facts 2026

    by Sarah Janssen

    • Price$12.49
    • Rating4.8
    • Reviews475

    View on Amazon · Full data on KDPTop

  5. The World Almanac and Book of Facts 2024 book cover by Sarah Janssen

    The World Almanac and Book of Facts 2024

    by Sarah Janssen

    • Price$12.99
    • Rating4.8
    • Reviews822

    View on Amazon · Full data on KDPTop

  6. The World Almanac and Book of Facts 2023 book cover by Sarah Janssen

    The World Almanac and Book of Facts 2023

    by Sarah Janssen

    • Price$12.99
    • Rating4.8
    • Reviews1,019

    View on Amazon · Full data on KDPTop

  7. The World Almanac and Book of Facts 2025 book cover by Sarah Janssen

    The World Almanac and Book of Facts 2025

    by Sarah Janssen

    • Price$12.99
    • Rating4.7
    • Reviews797

    View on Amazon · Full data on KDPTop

  8. The World Almanac and Book of Facts 2022 book cover by Sarah Janssen

    The World Almanac and Book of Facts 2022

    by Sarah Janssen

    • Price$12.99
    • Rating4.8
    • Reviews1,974

    View on Amazon · Full data on KDPTop

  9. The World Almanac and Book of Facts 2021 book cover by Sarah Janssen

    The World Almanac and Book of Facts 2021

    by Sarah Janssen

    • Price$10.99
    • Rating4.7
    • Reviews3,149

    View on Amazon · Full data on KDPTop

  10. The World Almanac and Book of Facts 2019 book cover by Sarah Janssen

    The World Almanac and Book of Facts 2019

    by Sarah Janssen

    • Price$10.99
    • Rating4.7
    • Reviews868

    View on Amazon · Full data on KDPTop

Main categories

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.