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Oldrich Ruzicka: Amazon KDP author data
As of Nov 6, 2026, Oldrich Ruzicka has 5 books on Amazon, 3 of them on a best-seller list in the last 30 days (best rank #4), mostly in Ancient, Archaeology, Europe.
| Median price | $13.40 |
|---|---|
| Price range (middle 50%) | $12 – $17.95 |
| Median reviews | 28 |
| Total reviews | 191 |
| New books (30 days) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- 60% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $13.40, 43% above the median of their main category, Ancient.
Oldrich Ruzicka's best-ranked books
-
Ancient Egypt for Kids (Unfolding the Past, 1)
by Oldrich Ruzicka
- Price$13.40
- Rating4.6
- Reviews85
- Published2022-11
-
Ancient Greece for Kids (Unfolding the Past, 2)
by Oldrich Ruzicka
- Price$12
- Rating4.7
- Reviews61
-
Ancient Rome for Kids (Unfolding the Past, 3)
by Oldrich Ruzicka
- Price$17.95
- Rating4.1
- Reviews16
-
World Atlas: A Voyage of Discovery for Young Explorers
by Oldrich Ruzicka
- Price$5.86
- Rating4.6
- Reviews28
- Published2014-05
-
Atlas of Planet Earth: for Kids
by Oldrich Ruzicka
- Price$17.95
- Rating5.0
- Reviews1
- Published2026-07
Main categories
FAQ
How many books does Oldrich Ruzicka have on Amazon?
KDPTop tracks 5 of their books; 3 made an Amazon list in the last 30 days.
Which categories does Oldrich Ruzicka publish in?
Their books chart most often in Ancient, Archaeology, Europe.
How does Oldrich Ruzicka price their books?
The median price is $13.40; half of the books cost $12–$17.95.
Has Oldrich Ruzicka 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.