For the Biennale Architettura 2021, in addition to the Exhibition Catalogue and the Short Guide, the curatorial team has put together two distinct volumes, entitled Expansions and Cohabitats, in order to further elaborate on the theme of How will we live together?. These books will appeal to a wide range of readers both from architecture and art communities and beyond, to include anyone who is interested in the role that creative practice can play in collectively answering the complex challenges posed by today's unstable world. Expansions, edited by Hashim Sarkis and Ala Tannir, gathers over eighty responses to the question posed by the Biennale Architettura 2021's theme. These contributions act as an extension to the different thematics presented by Participants in the galleries in Venice. Assembling the voices and views of authors from various fields associated with architecture-academics, curators, journalists, students, and more-this volume includes a collection of short essays that reveal recurring themes that are currently of interest to different architecture and design communities around the world. These include multispecies worlding, social and economic justice, the history of twentieth-century modern spatial practices, environmental concerns, public modes of transportation, as well as examinations and contestations of the digital/analog binary, among others. The graphic design and the layout of the volume are by Omnivore, Inc.