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S. L. Ager: Amazon KDP author data

As of Nov 6, 2026, S. L. Ager has 11 books on Amazon, 11 of them on a best-seller list in the last 30 days (best rank #2), mostly in Synonyms & Antonyms, Spelling, Regents.

11Books on Amazon
11Listed in 30 days
4.7Average rating
Median price$17.99
Price range (middle 50%)$11.89 – $18.99
Median reviews111
Total reviews1,759
New books (30 days)0
Breakout books (30 days)0

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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.

S. L. Ager's best-ranked books

  1. The Cadwaladr Quests (Book One: Tangled Time) USA Version: A Vocabulary Novel With a Built book cover by S. L. Ager

    The Cadwaladr Quests (Book One: Tangled Time) USA Version: A Vocabulary Novel With a Built-in Dictionary on Every Page

    by S. L. Ager

    • Price$7.99
    • Rating4.9
    • Reviews20

    View on Amazon · Full data on KDPTop

  2. The Cadwaladr Chronicles – Trap: 11+ Vocabulary book cover by S. L. Ager

    The Cadwaladr Chronicles – Trap: 11+ Vocabulary

    by S. L. Ager

    • Price$19.99
    • Rating4.7
    • Reviews153

    View on Amazon · Full data on KDPTop

  3. 11+ Vocabulary, Comprehension and Verbal Skills – Workbook 2: A STANDALONE Comprehension a book cover by S. L. Ager

    11+ Vocabulary, Comprehension and Verbal Skills – Workbook 2: A STANDALONE Comprehension and Verbal Skills Workbook Based on The Cadwaladr Quests: ... All 11+, SATs and Independent School Exams

    by S. L. Ager

    • Price$17.99
    • Rating4.5
    • Reviews16

    View on Amazon · Full data on KDPTop

  4. The Cadwaladr Chronicles – Cipher: 11+ Vocabulary book cover by S. L. Ager

    The Cadwaladr Chronicles – Cipher: 11+ Vocabulary

    by S. L. Ager

    • Price$18.99
    • Rating4.7
    • Reviews71

    View on Amazon · Full data on KDPTop

  5. The Cadwaladr Chronicles – Siege: 11+ Vocabulary book cover by S. L. Ager

    The Cadwaladr Chronicles – Siege: 11+ Vocabulary

    by S. L. Ager

    • Price$18.99
    • Rating5.0
    • Reviews27

    View on Amazon · Full data on KDPTop

  6. The Cadwaladr Chronicles – Escape: 11+ Vocabulary book cover by S. L. Ager

    The Cadwaladr Chronicles – Escape: 11+ Vocabulary

    by S. L. Ager

    • Price$18.99
    • Rating4.9
    • Reviews25

    View on Amazon · Full data on KDPTop

  7. The Cadwaladr Quests (Book One: Tangled Time): The Unique 11+ and SATs Vocabulary Novel book cover by S. L. Ager

    The Cadwaladr Quests (Book One: Tangled Time): The Unique 11+ and SATs Vocabulary Novel

    by S. L. Ager

    • Price$6.99
    • Rating4.6
    • Reviews800

    View on Amazon · Full data on KDPTop

  8. The Cadwaladr Quests (Book Three: Cat's Eye): The 11+ and SATs Vocabulary Novel book cover by S. L. Ager

    The Cadwaladr Quests (Book Three: Cat's Eye): The 11+ and SATs Vocabulary Novel

    by S. L. Ager

    • Price$11.90
    • Rating4.7
    • Reviews111

    View on Amazon · Full data on KDPTop

  9. The Cadwaladr Quests (Book Two: Race for the Gold): The 11+ and SATs Vocabulary Novel book cover by S. L. Ager

    The Cadwaladr Quests (Book Two: Race for the Gold): The 11+ and SATs Vocabulary Novel

    by S. L. Ager

    • Price$11.89
    • Rating4.6
    • Reviews236

    View on Amazon · Full data on KDPTop

  10. The Cadwaladr Chronicles – Trap: 11+ Vocabulary book cover by S. L. Ager

    The Cadwaladr Chronicles – Trap: 11+ Vocabulary

    by S. L. Ager

    • Price$11.89
    • Rating4.7
    • Reviews153

    View on Amazon · Full data on KDPTop

Main categories

FAQ

How many books does S. L. Ager have on Amazon?

KDPTop tracks 11 of their books; 11 made an Amazon list in the last 30 days.

Which categories does S. L. Ager publish in?

Their books chart most often in Synonyms & Antonyms, Spelling, Regents.

How does S. L. Ager price their books?

The median price is $17.99; half of the books cost $11.89–$18.99.

Has S. L. Ager 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.