The works of Madge Gill, a mediumistic artist from the mid-20th century, were collected by Jean Dubuffet. Guided by a spirit and in a trance state, Madge Gill drew in ink on surfaces ranging from small formats to rolls of over a hundred meters. Her entire body of work was only discovered after she died in 1961. Today considered a key figure in outsider art, her works can be found in major European and North American collections: American Folk Art Museum (New York, USA), the Museum of Everything (UK), Arnulf Rainer Collection (Austria), Damman (Switzerland), Treger Saint Silvestre (Portugal), etc. In 2024, her works will be presented at the Venice Biennale curated by Adriano Pedrosa.