Iain Sinclair is a leading writer, filmmaker, poet and psychogeographer, renowned for his walks in the borderlands of cities, derelict sites and urban redevelopments. His solitary walks in Middlesbrough and Hartlepool were the focus of a public talk at mima. Sinclair previously walked the M25 to write London Orbital, and his new book, Ghost Milk, is a road map of post-Olympics landscapes.