KDP categories · Top KDP authors
E.R. Chamberlin: Amazon KDP author data
As of Nov 6, 2026, E.R. Chamberlin has 13 books on Amazon, 12 of them on a best-seller list in the last 30 days (best rank #22), mostly in Renaissance, Italy, Southern.
| Median price | $5.99 |
|---|---|
| Price range (middle 50%) | $5.99 – $6.99 |
| Median reviews | 133 |
| Total reviews | 3,019 |
| New books (30 days) | 1 |
| Breakout books (30 days) | 1 |
What stands out
- 92% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $5.99, 33% below the median of their main category, Renaissance.
E.R. Chamberlin's best-ranked books
-
The Fall of the House of Borgia (The Mad, Bad and Ugly of Italian History)
by E.R. Chamberlin
- Price$5.99
- Rating4.3
- Reviews359
-
Life in Medieval France (Insights From the Past)
by E.R. Chamberlin
- Price$0
- Rating4.1
- Reviews26
- Published2022-06
-
The Fall of Renaissance Rome: Three Classic Histories of Power, Intrigue and Corruption in Renaissance Italy (The Mad, Bad and Ugly of Italian History)
by E.R. Chamberlin
- Price$9.99
- Reviews-
-
The Bad Popes (The Mad, Bad and Ugly of Italian History)
by E.R. Chamberlin
- Price$5.99
- Rating4.2
- Reviews704
-
Florence in the Time of the Medici (The Mad, Bad and Ugly of Italian History)
by E.R. Chamberlin
- Price$5.99
- Rating3.9
- Reviews133
-
The Sack of Rome (The Mad, Bad and Ugly of Italian History)
by E.R. Chamberlin
- Price$5.99
- Rating4.4
- Reviews252
-
The Count Of Virtue: Giangaleazzo Visconti, Duke of Milan (The Mad, Bad and Ugly of Italian History)
by E.R. Chamberlin
- Price$5.99
- Rating4.0
- Reviews66
-
Marguerite of Valois: Queen of Navarre and France, 1553-1615 (Women Who Changed the Course of History)
by E.R. Chamberlin
- Price$5.99
- Rating4.1
- Reviews44
-
The Emperor Charlemagne
by E.R. Chamberlin
- Price$5.99
- Rating4.2
- Reviews702
-
Main categories
FAQ
How many books does E.R. Chamberlin have on Amazon?
KDPTop tracks 13 of their books; 12 made an Amazon list in the last 30 days.
Which categories does E.R. Chamberlin publish in?
Their books chart most often in Renaissance, Italy, Southern.
How does E.R. Chamberlin price their books?
The median price is $5.99; half of the books cost $5.99–$6.99.
Has E.R. Chamberlin 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.