KDP categories · Top KDP authors
Martha E. H. Rustad: Amazon KDP author data
As of Nov 6, 2026, Martha E. H. Rustad has 29 books on Amazon, 23 of them on a best-seller list in the last 30 days (best rank #1), mostly in Government, Weather, Science, Nature & How It Works.
| Median price | $7.99 |
|---|---|
| Price range (middle 50%) | $6.60 – $8.99 |
| Median reviews | 10 |
| Total reviews | 1,157 |
| New listings (30 days, incl. new editions) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- 79% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $7.99, 19% below the median of their main category, Government.
Martha E. H. Rustad's best-ranked books
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Volcanoes (Little Scientist)
by Martha E. H. Rustad
- Price$8.54
- Rating4.6
- Reviews218
-
Snakes (Little Scientist)
by Martha E. H. Rustad
- Price$10.99
- Rating4.1
- Reviews113
-
Can You Sing "The Star-Spangled Banner"? (Cloverleaf Books ™ — Our American Symbols)
by Martha E. H. Rustad
- Price$4.99
- Rating4.8
- Reviews16
- Published2014-08
-
Fall Harvest Fun (Fall Fun (Early Bird Stories ™))
by Martha E. H. Rustad
- Price$7.27
- Rating4.3
- Reviews10
- Published2018-08
-
Space (Little Scientist)
by Martha E. H. Rustad
- Price$6.95
- Rating3.8
- Reviews9
-
What Is It Made Of?: Noticing Types of Materials (Cloverleaf Books ™—Nature's Patterns)
by Martha E. H. Rustad
- Price$8.99
- Rating5.0
- Reviews8
-
African Animals (Little Scientist)
by Martha E. H. Rustad
- Price$10.99
- Rating4.3
- Reviews55
-
Does Sun Sleep?: Noticing Sun, Moon, and Star Patterns (Cloverleaf Books ™—Nature's Patterns)
by Martha E. H. Rustad
- Price$8.11
- Rating4.7
- Reviews26
-
Diversión con manzanas en otoño (Fall Apple Fun) (Diversión en otoño (Fall Fun) (Early Bird Stories ™ en español)) (Spanish Edition)
by Martha E. H. Rustad
- Price$4.99
- Rating5.0
- Reviews7
-
Fall Weather: Cooler Temperatures (Cloverleaf Books ™ — Fall's Here!)
by Martha E. H. Rustad
- Price$4.75
- Rating4.7
- Reviews189
Main categories
FAQ
How many books does Martha E. H. Rustad have on Amazon?
KDPTop tracks 29 of their books; 23 made an Amazon list in the last 30 days.
Which categories does Martha E. H. Rustad publish in?
Their books chart most often in Government, Weather, Science, Nature & How It Works.
How does Martha E. H. Rustad price their books?
The median price is $7.99; half of the books cost $6.60–$8.99.
Has Martha E. H. Rustad 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.