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Ephraim Katz: Amazon KDP author data
As of Nov 6, 2026, Ephraim Katz has 4 books on Amazon, 4 of them on a best-seller list in the last 30 days (best rank #2), mostly in Encyclopedias, Guides & Reviews, Industry.
| Median price | $31.50 |
|---|---|
| Price range (middle 50%) | $21.75 – $61.20 |
| Median reviews | 144 |
| Total reviews | 556 |
| New books (30 days) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- Median price $31.50, 49% above the median of their main category, Encyclopedias.
Ephraim Katz's best-ranked books
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The Film Encyclopedia: The Complete Guide to Film and the Film Industry
by Ephraim Katz
- Price$2.99
- Rating4.3
- Reviews261
- Published2013-02
-
The Film Encyclopedia 7th Edition: The Complete Guide to Film and the Film Industry ― A Movie Reference Book
by Ephraim Katz
- Price$28
- Rating4.3
- Reviews261
-
The Film Encyclopedia: The Most Comprehensive Encyclopedia of World Cinema in One Volume
by Ephraim Katz
- Price$140
- Rating4.6
- Reviews6
-
The Film Encyclopedia 6e: The Complete Guide to Film and the Film Industry
by Ephraim Katz
- Price$35
- Rating4.2
- Reviews28
Main categories
FAQ
How many books does Ephraim Katz have on Amazon?
KDPTop tracks 4 of their books; 4 made an Amazon list in the last 30 days.
Which categories does Ephraim Katz publish in?
Their books chart most often in Encyclopedias, Guides & Reviews, Industry.
How does Ephraim Katz price their books?
The median price is $31.50; half of the books cost $21.75–$61.20.
Has Ephraim Katz 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.