FOS, born Thomas Poulsen (b. 1971, Copenhagen, Denmark), is an artist whose works explore the varied ways shifting contexts alter human interactions and perceptions, creating interventions that manipulate 'social design', using public experience and social exchange as his materials. His work has been exhibited at Athens Biennale, Athens (2013); Camden Arts Centre, London (2012); Venice Biennale, Venice (2011); National Gallery of Denmark, Copenhagen (2011); and Den Frie Centre of Contemporary Arts, Copenhagen, (2011), among many others.