historian Werner Haftmann and by the founder of documenta Arnold Bode, who asked him to contribute to the exhibition. While in Kassel he bought a burning by Alberto Burri. In the same year Cavellini's gallery was visited by art historians Vittorio Viale and Palma Bucarelli, and then by poets Eugenio Montale, Salvatore Quasimodo, Giuseppe Ungaretti, Beniamino Joppolo and French painter Maurice Estève. In January 1956 he went back to Paris where he met San Lazzaro and bought a painting by Serge Poliakoff. He also met Lucio Fontana in his studio in Milan and acquired from him one of his holes, a painting by Osvaldo Licini and one by Asger Jorn. In 1957 Palma Bucarelli asked Cavellini to exhibit at the National Gallery of Modern Art in Rome, which she managed. The exhibition, titled Modern Painters of the Cavellini Collection, consisted of 180 works and was inaugurated on 24 May 1957 at the presence of Italian Minister of Education Pietro Campilli. The exhibition received positive reviews from, among others, art critics Lionello Venturi, Giulio Carlo Argan, Giuseppe Marchiori and Guido Ballo, and also by Francesco Arcangeli, Attilio Bertolucci, Enrico Crispolti, Maurizio Calvesi and Alfredo Mezio. At the start of 1958 the exhibition moved to La Chaux-de-Fonds in Switzerland, then to Kunsthalle in Basel and finally to Germany at the Staatliche Kunsthalle in Baden-Baden and at the Landolins museum in Esslingen am Neckar. Abstract Art and Man Painter On 2 June 1958 Cavellini published his first book Arte astratta (Abstract Art), printed by Giampiero Giani and presented at the Venice Biennale. The book participated in the Viareggio Prize, reaching the final selection. Abstract Art was positively reviewed by Elda Fezzi, Guido Ballo, Giorgio Kaisserlian, Duilio Morosini, Angelo Dragone and Rosanna Apicella. Some pages of Cavellini's diary were published by Alfredo Mezio on the magazine Mondo, directed by Mario Pannunzio. In the summer of the same year he traveled to London with his daughter Mariella, and there he met painter John Latham and bought some of his works. In the same period he visited the exhibitions by Yves Klein at the Apollinaire Gallery in Milan, those by Arman and Shusaku Arakawa at the Arturo Schwarz Gallery in Milan, the group exhibitions by Luciano Pistoi and Michel Tapié in Turin and the ones set up by Attilio Codognato in Venice. At one of those exhibitions he met Christo, who then visited Cavellini's home. On