Susi and Ueli Berger created Swiss design icons: the Soft Chair (1967), the Cloud Lamp (1970), the endless sofa DS-600 (1970) or in 1981 the Stack of Drawers and the Kung Fu Shelf. For over 40 years, graphic designer Susi Berger-Wyss and artist Ueli Berger designed furniture true to their credo: "Only a new idea justifies a new piece of furniture." With their intuitive, sometimes provocative way of working, the couple left the well-trodden paths of functionalism and ventured into a world of contrasts between product design and object art, suitability for everyday use and playful provocation, rationality and sensuality. The prerequisite for this was an incessant dialogue, full of friction and pleasure, not only between Susi and Ueli Berger, but also with producers such as Röthlisberger, Victoria Werke and de Sede. This book offers a complete catalog raisonné of de.