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Eng S Jama: Amazon KDP author data
As of Nov 6, 2026, Eng S Jama has 3 books on Amazon, 2 of them on a best-seller list in the last 30 days (best rank #23), mostly in Number Theory, Education & Reference, Counting & Numeration.
| Median price | $5.99 |
|---|---|
| Price range (middle 50%) | $3.99 – $7.99 |
| Median reviews | 13 |
| Total reviews | 238 |
| New listings (30 days, incl. new editions) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- Median price $5.99, 40% below the median of their main category, Number Theory.
Eng S Jama's best-ranked books
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UNDERSTANDING FRACTIONS VISUALLY in Colour: Colour-coded Fractions Charts, Fractions, Equivalent Fractions, Decimal Fractions and Percentages
by Eng S Jama
- Price$1.99
- Rating5.0
- Reviews2
-
Adding Fractions Visually Workbook Third Edition
by Eng S Jama
- Price$9.99
- Rating4.4
- Reviews223
- Published2018-10
-
UNDERSTANDING FRACTIONS VISUALLY Second Edition Colour: Colour-coded Fractions, Visual Fractions, Equivalent Fractions, Decimal Fractions and Percentages
by Eng S Jama
- Price$0
- Rating4.1
- Reviews13
- Published2014-04
Main categories
FAQ
How many books does Eng S Jama have on Amazon?
KDPTop tracks 3 of their books; 2 made an Amazon list in the last 30 days.
Which categories does Eng S Jama publish in?
Their books chart most often in Number Theory, Education & Reference, Counting & Numeration.
How does Eng S Jama price their books?
The median price is $5.99; half of the books cost $3.99–$7.99.
Has Eng S Jama 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.