During a forty-year period Otto Baumberger designed more than two hundred posters for a wide variety of clients, displaying a prodigious capacity for finding astonishing creative solutions. Baumberger's lack of linear development and his refusal to take up the ethical and aesthetic ideals introduced to graphic design by Modernism surprised his colleagues, and still disturb viewers today. While difficult to situate Baumberger within the history of poster art in stylistic terms, it is the diversity in style which give him a particularly modern quality.
"There is no reason to doubt: Marque PKZ, Baumann Bahnhofstr.25, or Fein-Kaller are still unbeatable, emblematic masterpieces of brand marketing and discreet seduction." (Martin Heller)