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Sarah J Mercer: Amazon KDP author data

As of Nov 6, 2026, Sarah J Mercer has 3 books on Amazon, 3 of them on a best-seller list in the last 30 days (best rank #12), mostly in Tai Chi & Qi Gong, Exercise & Fitness, Medicine.

3Books on Amazon
3Listed in 30 days
4.7Average rating
Median price$17.99
Price range (middle 50%)$11.49 – $17.99
Median reviews18
Total reviews55
New books (30 days)1
Breakout books (30 days)1

View on Amazon

What stands out

  • Median price $17.99, 20% above the median of their main category, Tai Chi & Qi Gong.

Sarah J Mercer's best-ranked books

  1. Chair Tai Chi Seated Exercises for Seniors: A 28-Day Guided Seated Tai Chi Video Workout w book cover by Sarah J Mercer

    Chair Tai Chi Seated Exercises for Seniors: A 28-Day Guided Seated Tai Chi Video Workout with Step-by-Step Photos for Better Balance, Mobility & Confidence

    by Sarah J Mercer

    • Price$17.99
    • Rating4.3
    • Reviews19
    • Published2026-08

    View on Amazon · Full data on KDPTop

  2. Tai Chi Walking Exercises for Seniors Over 60: The 28-Day Balance Program — Regain Walking book cover by Sarah J Mercer

    Tai Chi Walking Exercises for Seniors Over 60: The 28-Day Balance Program — Regain Walking Confidence with a Relaxing Exercise Routine

    by Sarah J Mercer

    • Price$4.99
    • Rating4.9
    • Reviews18

    View on Amazon · Full data on KDPTop

  3. Tai Chi Walking Exercises for Seniors Over 60: The 28-Day Balance Program — Regain Walking book cover by Sarah J Mercer

    Tai Chi Walking Exercises for Seniors Over 60: The 28-Day Balance Program — Regain Walking Confidence with a Relaxing Exercise Routine

    by Sarah J Mercer

    • Price$17.99
    • Rating4.9
    • Reviews18
    • Published2026-06

    View on Amazon · Full data on KDPTop

Main categories

FAQ

How many books does Sarah J Mercer have on Amazon?

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

Which categories does Sarah J Mercer publish in?

Their books chart most often in Tai Chi & Qi Gong, Exercise & Fitness, Medicine.

How does Sarah J Mercer price their books?

The median price is $17.99; half of the books cost $11.49–$17.99.

Has Sarah J Mercer 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.