For almost 15 years now, the two Portuguese artists João Maria Gusmao + Pedro Paiva have been constructing an imaginative journey through films, photographs, installations, and sculptures that encapsulate philosophical, existential, and conceptual issues. Produced in conclusion to a series of exhibitions—which began in 2011 with “Alien Theory” at frac île-de-france, and le plateau in Paris, by way of Museo Marino Marini in Florence, and ended with “Papagaio”, 2014–15 (premiering at HangarBicocca in Milan then moving on to the Camden Arts Centre in London)—Teoria Extraterrestre is the most complete monograph to date on João Maria Gusmão + Pedro Paiva, condensing nearly four years of work and thought that have been compiled into a film cosmogony by the artists themselves. This book has been published also on the occasion of a seminar organized by Fondazione Donnaregina per le Arti Contemporanee / Museo Madre, Naples.