In 1993 he won the poster and corporate identity competition for the Kieler Woche 1994 sailing festival. He has shared exhibitions with Rosmarie Tissi in Offenbach, New York, Zürich, Essen and Tokyo. On the occasion of their poster exhibition at the German Poster Museum in Essen Sigi and Rosmarie’s hand and footprints were marked in concrete. He designed the book Odermatt & Tissi, Graphic Design (1993), showcasing their work, and 100+3 Swiss Posters (1998), containing a selection from his comprehensive and excellent poster collection. It also served as the catalogue for the 100+3 exhibition in Horgen (1998), Essen (2000), London (2002), Tehran (2004) and Chiasso (2006).

Odermatt’s work began to gain recognition in the world of graphic art towards the end of the 1950s. His corporate graphics of this period for the Zurich Grammo Studio or the phototypographic ads for the Zurich pharmacy Sammet were typical of the epoch – one has only to think of Verena Loewensberg’s jazz record shop in Zurich or Karl Gerstner’s graphic for the Basle Boîte à Musique. In the 1960s, Odermatt also used his own photographs for the covers of the Swiss magazine Typographische Monatsblätter [Typographic Monthly], which was very important to the new graphic art.