Columbia Documents of Architecture and Theory, more colloquially known as D, was a biannual journal that compiled selected material from lectures, conferences, and other forms of discourse that took place at Columbia GSAPP. Its focus was generally theoretical, seeking to explore architecture’s engagement with culture and history and to invite leading theorists and practitioners to question the context in which the practice of architecture occurs.

The sixth volume of D includes discussions from both the Light Construction and Emerging Complexities symposia hosted by the school; discussions of work by Jean Nouvel, Jacques Herzog and Pierre de Meuron, William Macdonald and Sulan Kolatan, and Jesse Reiser and Nanako Umemoto; as well as an essay on critical architecture and geopolitics by Peter Eisenman.