This large-format volume is the first to document the long-term collaboration of the Italian photographer Walter Niedermayr with the Tokyo-based architects Kazuyo Sejima and Ryue Nishizawa, who operate under the name SANAA. Niedermayr is best known around the world for his pale photographs of landscapes and interiors, and SANAA for the understated, ephemeral effects of their buildings. In each of their disciplines they pursue an artistically abstract approach to investigating architecture and space according to their coexistence, layers, and constructs. Photographs and plans show how the monolithic and the fragmentary, the hermetic and the porous, the amorphous and the solid lead to ever-changing spatial relationships and atmospheres.