KDP categories · Top KDP authors

S. A. Kramer: Amazon KDP author data

As of Nov 6, 2026, S. A. Kramer has 9 books on Amazon, 9 of them on a best-seller list in the last 30 days (best rank #3), mostly in Sports & Recreation, Exploration & Discovery, Historical.

9Books on Amazon
9Listed in 30 days
4.6Average rating
Median price$5.99
Price range (middle 50%)$3.99 – $5.99
Median reviews397
Total reviews4,591
New listings (30 days, incl. new editions)0
Breakout books (30 days)0

View on Amazon

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 $5.99, 20% above the median of their main category, Sports & Recreation.

S. A. Kramer's best-ranked books

  1. Who Was Ferdinand Magellan? (Who Was?) book cover by S. A. Kramer

    Who Was Ferdinand Magellan? (Who Was?)

    by S. A. Kramer

    • Price$5.99
    • Rating4.6
    • Reviews249

    View on Amazon · Full data on KDPTop

  2. Who Was Ferdinand Magellan? book cover by S. A. Kramer

    Who Was Ferdinand Magellan?

    by S. A. Kramer

    • Price$6.29
    • Rating4.6
    • Reviews249

    View on Amazon · Full data on KDPTop

  3. Basketball's Greatest Players (Step into Reading, Step 5) book cover by S. A. Kramer

    Basketball's Greatest Players (Step into Reading, Step 5)

    by S. A. Kramer

    • Price$3.99
    • Rating4.7
    • Reviews1,108

    View on Amazon · Full data on KDPTop

  4. To the Top! Climbing the World's Highest Mountain (Step-Into-Reading, Step 5) book cover by S. A. Kramer

    To the Top! Climbing the World's Highest Mountain (Step-Into-Reading, Step 5)

    by S. A. Kramer

    • Price$5.99
    • Rating4.7
    • Reviews580

    View on Amazon · Full data on KDPTop

  5. Basketball's Greatest Players (Step into Reading Level 5) book cover by S. A. Kramer

    Basketball's Greatest Players (Step into Reading Level 5)

    by S. A. Kramer

    • Price$3.99
    • Rating4.7
    • Reviews1,108

    View on Amazon · Full data on KDPTop

  6. Baseball's Greatest Hitters: From Ty Cobb to Miguel Cabrera (Step into Reading Level 5) book cover by S. A. Kramer

    Baseball's Greatest Hitters: From Ty Cobb to Miguel Cabrera (Step into Reading Level 5)

    by S. A. Kramer

    • Price$3.99
    • Rating4.7
    • Reviews397

    View on Amazon · Full data on KDPTop

  7. Submarines (Step into Reading, Step 4) book cover by S. A. Kramer

    Submarines (Step into Reading, Step 4)

    by S. A. Kramer

    • Price$3.99
    • Rating4.0
    • Reviews19

    View on Amazon · Full data on KDPTop

  8. Baseball's Greatest Hitters: From Ty Cobb to Miguel Cabrera (Step into Reading, Step 5) book cover by S. A. Kramer

    Baseball's Greatest Hitters: From Ty Cobb to Miguel Cabrera (Step into Reading, Step 5)

    by S. A. Kramer

    • Price$5.99
    • Rating4.7
    • Reviews397

    View on Amazon · Full data on KDPTop

  9. Who Was Daniel Boone? book cover by S. A. Kramer

    Who Was Daniel Boone?

    by S. A. Kramer

    • Price$6.51
    • Rating4.7
    • Reviews484

    View on Amazon · Full data on KDPTop

Main categories

FAQ

How many books does S. A. Kramer have on Amazon?

KDPTop tracks 9 of their books; 9 made an Amazon list in the last 30 days.

Which categories does S. A. Kramer publish in?

Their books chart most often in Sports & Recreation, Exploration & Discovery, Historical.

How does S. A. Kramer price their books?

The median price is $5.99; half of the books cost $3.99–$5.99.

Has S. A. Kramer 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.