Samuel Wainer, a talented, intuitive, self-made man, transformed and modernised the production of newspapers, both physically and in the editorial
content. He created columns and small-ads pages which quickly became popular. He re-invented diagramming, with editorial and conceptual audacity. Naturally such success aroused the wrath of his rivals. However from the launching of
Última Hora newspaper in 1951, until the beginning of the military dictatorship in the first half of the 1960s, Samuel incarnated a mythical figure simultaneously clever and successful.