KDP categories · Top KDP authors
Ruben Martin: Amazon KDP author data
As of Nov 6, 2026, Ruben Martin has 9 books on Amazon, 9 of them on a best-seller list in the last 30 days, mostly in Negocios y Economía, Política, Sociedad y Ciencias Sociales.
| Median price | - |
|---|---|
| Price range (middle 50%) | - |
| Median reviews | 12 |
| Total reviews | 133 |
| 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.
Ruben Martin's best-ranked books
-
Vivir mejor no es sólo tener más, sino ser más feliz. José Mujica presidente de Uruguay (Magis 437) (Spanish Edition)
by Ruben Martin
- Price$0
- Rating4.2
- Reviews45
- Published2019-07
-
Doctor Honoris Causa SUJ Edgar Morin. Repensar la complejidad humana (Magis 467) (Spanish Edition)
by Ruben Martin
- Price$0
- Rating3.9
- Reviews23
- Published2019-06
-
Vandana Shiva, la gandhi de las semillas (Magis 436) (Spanish Edition)
by Ruben Martin
- Price$0
- Rating4.3
- Reviews16
- Published2019-08
-
Jane Goodall. Una niña lo puede todo (Magis 462) (Spanish Edition)
by Ruben Martin
- Price$0
- Rating4.7
- Reviews12
- Published2018-03
-
González Iñárritu. Retratos de la complejidad humana (Magis 445) (Spanish Edition)
by Ruben Martin
- Price$0
- Rating4.0
- Reviews12
- Published2019-04
-
Karly Bushby, salir al mundo (Magis 476) (Spanish Edition)
by Ruben Martin
- Price$0
- Rating3.9
- Reviews8
- Published2020-10
-
Bob Dylan un nobel para ser cantado (Magis 455) (Spanish Edition)
by Ruben Martin
- Price$0
- Rating2.9
- Reviews7
- Published2018-11
-
La arquitectura solidaria de Shigeru Ban (Magis 448) (Spanish Edition)
by Ruben Martin
- Price$0
- Rating4.4
- Reviews7
- Published2019-03
-
Dorcas Muthoni: La ingeniería que revoluciona África (Magis 465) (Spanish Edition)
by Ruben Martin
- Price$0
- Rating5.0
- Reviews3
- Published2018-09
Main categories
FAQ
How many books does Ruben Martin have on Amazon?
KDPTop tracks 9 of their books; 9 made an Amazon list in the last 30 days.
Which categories does Ruben Martin publish in?
Their books chart most often in Negocios y Economía, Política, Sociedad y Ciencias Sociales.
Has Ruben Martin 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.