Sophie Calle (born 1953) is a French writer, photographer, installation artist, and conceptual artist. Calle's work is distinguished by its use of arbitrary sets of constraints, and evokes the French literary movement of the 1960s known as Oulipo. Her work frequently depicts human vulnerability, and examines identity and intimacy. She is recognized for her detective-like ability to follow strangers and investigate their private lives. Her photographic work often includes panels of text of her own writing.Since 2005 Sophie Calle has taught as a professor of film and photography at European Graduate School in Saas-Fee, Switzerland. She has lectured at the University of California, San Diego in the Visual Arts Department. She has also taught at Mills College in Oakland, California. Exhibitions featuring the work of Sophie Calle took place at the Hermitage Museum in St. Petersburg, Russia, at Musée d'Art et d'Histoire du Judaïsme, Paris, at Paula Cooper Gallery, New York, USA, at the Palais des Beaux-Arts, Brussels, Belgium; Videobrasil, SESC Pompeia, São Paulo, Brazil; Museum of Modern Art of Bahia, Salvador, Brazil; Whitechapel Art Gallery, London, UK; and the De Pont Museum of Contemporary Art, Tilburg, The Netherlands.