This is the book of the exhibition Walls of Air [the Brazilian Pavilion at the 16th International Architecture Exhibition, Venice Biennale 2018]. It offers a window into the extended research developed. It is an in-depth analysis of everything that was learned and discussed throughout the process of building this exhibit. The Book is structured in 10 chapters, each one related to one map. And each of the chapters contains an interview with a specialist from another discipline, a set of 2 to 4 essays, and works from artists intervening in Brazil. The book as a whole allows us to further discuss the Walls of Air that have built Brazil.