The specialized book "clavienrossier" offers a deep insight into the architectural designs of Valéry Clavien and Nicola Rossier, who are active in Geneva and the Valais region. The authors, Valéry Clavien and Nicola Rossier, consistently and often radically implement innovative design ideas in their projects. One example of this is the creation of a new upper floor above the untouched ground floors of a small rural building. These designs are characterized by creative and intelligent references to the base structure as well as to the new residential use. The book is written in German and consists of 60 pages that include both visual and textual elements to explain the architectural concepts. It is aimed at professionals and enthusiasts in the fields of art, music, and design, offering valuable perspectives on modern architecture.