Maurício Dias (Rio de Janeiro, Brazil, 1964) & Walter Riedweg (Lucerna, Suíça, 1955) have worked together since 1993, using their respective former experiences in visual arts and performance in collaborative interdisciplinary public art projects.
Their work investigates how private psychologies affect and constitute public space and vice-versa, having as main caractheristic the involvement of the audience in the creation and execution of the work itself. Dias & Riedweg are currently represented by Galeria Vermelho, Sao Paulo and Galeria Filomena Soares, Lisbon.

They received the jury prize at Festival Video Brasil, Sao Paulo, 2007 and recognition grants from the Guggenheim Foundation, New York and Fondation Pro Helvetia, Switzerland. Dias & Riedweg have realized art projects and exhibitions in Brasil, Argentina, South Africa, Egypt, China, Japan, the United States and in several countries in Europe.
Their work was exhibited in important art institutions such as Centro Cultural do Banco do Brasil, Rio de Janeiro, MACBA Barcelona, KIASMA Helsinki and Le Plateau Paris, as well as in majour international exhibitions such as “Conversations at the Castle”, by Homi Bhabha and Mary Jane Jacob, Atlanta, 1996, “L’État des Choses” by Catherine David, at Kunst-Werke Berlin, 2001 and “The Populism Project, 2005. They also participated at the Biennale Venezia (1999), Sao Paulo (1998 e 2002), Istanbul (1998), Havanna (2003), Liverpool and Shanghai (2004), Gwangju (2006), as well as at Documenta 12, in Kassel, Germany, 2007. They are currently preparing new solo exhibitions for Galerie Bendana-Pinel em Paris, The Americas Society New York, Argos in Brussels and Instituto Tomie Ohtake, São Paulo, 2009.