Dissolving the boundaries between nature and design, between order and uncertainty, between inside and outside, Sou Fujimoto is a daringly original voice in architecture. This comprehensive overview of his complete body of work traces his career and explores his ideas, influences, and achievements. Working from studios in Tokyo and Paris, he draws inspiration not just from the great architectural canon, but from the natural world, quantum physics, and the complexities of human interaction. He aims to create spaces that feel at once elemental and radically new. Completed with an overview of his oeuvre, all his landmark projects are described in detail, including House N, House NA, and the Musashino Art University Museum & Library in Tokyo, the House of Music in Budapest, and the monumental Grand Ring for Expo 2025 Osaka.At the heart of Fujimoto's ‘Primitive Future’ philosophy lies a fascination with ambiguity, imperfection, and possibility. Educated much by Japanese concepts of in-between space as by the revolutionary thinking of Einstein or his heroes Gaudo, Le Corbusier, and Mies van der Rohe, he imagines architecture as a living framework for experience. Whether he’s creating cloud-like structures from steel grids, with his Serpentine Gallery Pavilion, or an apartment block with living spaces that extend like branches into the sky, as in L'Arbre Blanc, Fujimoto's buildings invite people to discover new relationships with one another and their surroundings. With an in-depth introduction and commentary, this is the most complete portrait yet of an architect who is totally unafraid to challenge every convention, to “dismantle architecture to its limits”.