Air might be the opposite of building, but it is not the opposite of architecture. Air is architectural with all its aesthetic, biological, ecological, economic, environmental, ethical, financial, philosophical, political, scientific, social, and technological meanings. Air belongs to the family of multiple, heterogeneous, and massively distributed objects in time and space. Air is an hyperobject that brings with it the planetary scale with all its intense pluralism. This book opens a series of narratives where air emerges at the intersection of all materiality—a transient material across time and space scales. This book works on how to introduce these discussions in architecture practice. A conscious effort to address the body of air within architecture discourse will help these questions to be meaningful for architecture practice. The transscalar dimension of architecture challenges the conventional apparatus of architecture, opening questions about process, time, and entropy as opposed to form, space, and order. With Contributions of ●       Aerocene.org ●       Agency_ Ersela Krippa and Stephen Müller ●       Marie Bardet ●       Rafael Beneytez-Duran ●       Silvia Benedito ●       Salmaan Craig ●       Olafur Eliasson ●       Javier García-German ●       Victoria McReynolds ●       Kiel Moe ●       Manuel de Landa ●       Philippe Rahm