This issue includes the first version of the international Conference on Utopian & Sacred Architecture Studies (USAS) was held from 11 -13 June 2019 in association with Universita degli Studi della Campania Luigi Vanvitelli. The conference included many discussions that covered extremely important topics and presented theories and practices stimulated over the last five centuries in a wide range of scientific areas such as historiography, political science as well as literary and art studies.