Since 1993, Maur'cio Dias and Walter Riedweg have been developing a collaborative work that probes the relationship between ethics and aesthetics through precise interventions in specific individual and group situations. Their methods, ranging from scientific documentation to complex video dramatizations, focus especially on issues associated with identity and the tension between group and individual mechanisms. The direct involvement of the public in their work process is crucial. This catalogue contains a retrospective of their works to date, including Voracidad mxima, their joint project for the Museu d'Art Contemporani de Barcelona. The enclosed DVD includes a video fragment from that piece, which explores the relationship between sexuality and economics and was made in cooperation with male sex workers from the museum's neighborhood, El Raval.