COCA was the First Congress in Architectural Communication held at the Escuela Técnica Superior de Arquitectura de Madrid (ETSAM). I presented during the Pedagogical Actions panels the work Spatial and Body Transactions developed by Barnard+Columbia students during the spring 2017 semester. It explored the conditions for transactions in an educational setting, that of the Barnard and Columbia campus in NYC. The project asks, where and how are formulated the transactions defining the codes for space and the body interaction. These relations are understood here to be a complex design and cultural operation of spatial, formal, legal, visual, political, aesthetic, and performative capacities. Projects ranged from archive research and documentation through drawing, photography, augmented reality or video.