The catalogue documents Mario Merz’s first solo exhibition in Brazil. The exhibition, curated by Danilo Eccher, was planned as a travelling event and was presented in the spaces of the Pinacoteca do Estado in São Paulo, the Paço Imperial in Rio de Janeiro and the Museu de Arte Moderna in Salvador di Bahia, after having been hosted in the spaces of the Fundación Proa in Buenos Aires. The exhibition included works and large-scale installations that the book documents through a large number of photographs.