Reflecting on the complex relationships that emerge from the repression and recurrence of colour in the work of Le Corbusier and Bruno Taut, Mark Wigley opens up a new understanding of the historical avant-garde by exploring the most obvious but least discussed feature of modern architecture: white walls. Mark Wigley, formerly Associate Professor and Director of Graduate Studies at Princeton, is Dean of Graduate School of Architecture, Planning and Preservation at Columbia University. He is the author of several books including White Walls, Designer Dresses: The Fashioning of Modern Architecture and The Architecture of Deconstruction: Derrida's Haunt. NB: Slides are difficult to see. Lecture cuts out at start of Q & A.