For long, spatial design has been seen as an action that could be performed by people and for people only. And today, even though some of the most meaningful projects of our times seem to challenge this concept, qualitative researches still struggle to emerge. This is why this book collects, reconstructs, and discusses archetypal models of posthuman architecture, from the cabin of Henry David Thoreau to the Svalbard Global Seed Vault. To show how architectural, landscape, and industrial designers, be they professional practitioner or not, redefined their tools in order to meet the functional and symbolic needs of new and different kinds of subjects. All this in ten monographic architectural tales, thought to trace the evolution of an extended idea of coexistence between humans and other species and technologies.