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Roman Gelperin: Amazon KDP author data
As of Nov 6, 2026, Roman Gelperin has 9 books on Amazon, 9 of them on a best-seller list in the last 30 days (best rank #3), mostly in Humanistic, Comparative, Tobacco.
| Median price | $7.49 |
|---|---|
| Price range (middle 50%) | $4.49 – $8.99 |
| Median reviews | 64 |
| Total reviews | 3,801 |
| New books (30 days) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- 100% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $7.49, 70% below the median of their main category, Humanistic.
Roman Gelperin's best-ranked books
-
Addiction, Procrastination, and Laziness: A Proactive Guide to the Psychology of Motivation
by Roman Gelperin
- Price$8.99
- Rating4.0
- Reviews1,493
-
Addiction, Procrastination, and Laziness: A Proactive Guide to the Psychology of Motivation
by Roman Gelperin
- Price$3.99
- Rating4.0
- Reviews1,493
-
Adicción, procrastinación y pereza: una guía proactiva a la psicología de la motivación (Spanish Edition)
by Roman Gelperin
- Price$3.99
- Rating4.4
- Reviews291
-
On Rotting Prison Straw: The Self-Actualization of Aleksandr Solzhenitsyn (Self-Actualizing People in History Book 2)
by Roman Gelperin
- Price$5.49
- Rating4.3
- Reviews21
-
The Master Mind of the Self-Actualizing Person: The Life and Legacy of Abraham Maslow, and My Sudden Awakening into Self-Actualization (Self-Actualizing People in History)
by Roman Gelperin
- Price$20.99
- Rating3.8
- Reviews64
-
On Rotting Prison Straw: The Self-Actualization of Aleksandr Solzhenitsyn
by Roman Gelperin
- Price$7.49
- Rating4.3
- Reviews21
-
The Master Mind of the Self-Actualizing Person: The Life and Legacy of Abraham Maslow, and My Sudden Awakening into Self-Actualization (Self-Actualizing People in History Book 1)
by Roman Gelperin
- Price$4.49
- Rating3.8
- Reviews64
-
The Master Mind of the Self-Actualizing Person: The Life and Legacy of Abraham Maslow, and My Sudden Awakening into Self-Actualization
by Roman Gelperin
- Price$7.49
- Rating3.8
- Reviews64
-
Adicción, procrastinación y pereza: una guía proactiva a la psicología de la motivación (Spanish Edition)
by Roman Gelperin
- Price$8.99
- Rating4.4
- Reviews290
Main categories
FAQ
How many books does Roman Gelperin have on Amazon?
KDPTop tracks 9 of their books; 9 made an Amazon list in the last 30 days.
Which categories does Roman Gelperin publish in?
Their books chart most often in Humanistic, Comparative, Tobacco.
How does Roman Gelperin price their books?
The median price is $7.49; half of the books cost $4.49–$8.99.
Has Roman Gelperin 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.