The Castle is a meticulous record of refugee camps located across mass migration routes from the Middle East and Central Asia into the European Union via Turkey. Using a thermal video camera intended for long-range border enforcement, Mosse films the camps from high elevations to draw attention to the ways in which each interrelates with, or is divorced from, adjacent citizen infrastructure. moreHis source footage is then broken down into hundreds of individual frames, which are digitally overlapped in a grid formation to create composite heat maps. The book is divided into 28 sites, each presenting an annotated sequence of close-up images that fold out into a panoramic heat map. Named after Kafka’s 1926 novel, The Castle prompts questions about the ‘visibility’ of refugees and the erosion of their human rights.