Architecture seems to have always grappled with missingness in its numerous guises and disguises, attempting to reclaim what is missing or disclaim the notion that something was ever really there.

This edition attempts to catalog some of the modes and methods in the theory, history, and practice of architecture whereby subjects and objects are found to be absent. When something disappears, only a lingering sense of its presence stays behind. Motives and means of disappearance remain to tease or haunt. Occasionally, traces are left, tangibly re-presenting the intangible un-present, at least for those for whom the traces are visible.

With Contributions of a vast selection of architects, artist, designers, historians, photographers, scholars, and academics including Rubén Alcolea, Kana Arioka, Iwan Baan, Jordan H. Carver, Kieran M. Cremin, Marcos Escamilla-Guerrero, Aurélie Frolet, Rizvi Hassan, Florian Idenburg, Iroha Ito, Alexander Kobald, Suzanne Lettieri, Andrew Lucia, Molly Meng Ma, Sébastien Marot, Juan Medina Revilla, Michael P. Moynihan, Caroline O’Donnell, Valerio Paolo Mosco, Laura Salazar, David Salomon, Pablo Sequero, Cornelius Tulloch, Benjamin Vanmuysen, Guorun Yang, J. Meejin Yoon, and Jenny Jiayue Zhang, representing an extensive diversity of approaches to theory, history, and the practice of architecture.