Global Contest to Rethink Our Habitat from the Body to the City. Vicente Guallart, Laia Piferré The Institute for Advanced Architecture of Catalonia (IAAC) calls its 9th Advanced Architecture Contest as a global reflection to rethink human settlements at a time when our natural environments and the human habitats are more clearly intertwined. The planet is immersed in a fast process of urbanization while we are simultaneously facing a serious climate crisis that must be addressed. We look to the model of Biocities, cities that follow the principles of ecological principles in order to promote life and biodiversity, to provide us with potential design solutions. How can we reimagine our cities as Biocities, capable of creating an ecologically attuned and reciprocal relationship with nature? This year’s competition challenges students and professionals from all over the world to propose how to design urban spaces, cities, buildings, objects, or solutions of any scale, directed