Interviewees include: Andy Warhol, Anish Kapoor, Joseph Beuys, Gilbert & George, Yoko Ono, R. Buckminster Fuller, Hermann Nitsch, Mario Merz, Gerhard Richter, Nam June Paik, as well as an interview with WB Yeats' daughter and readings by Yeats himself (in Vol.1
Mario | Super Mario Bros. | Mario Testino | Mario Vargas Llosa | Mario Lemieux | Mário Soares | Mario Lanza | Mario Botta | Mario Cuomo | Mario Andretti | Mario Monti | Mario del Monaco | Mario Batali | Mario Balotelli | Mario Winans | Mario Savio | Mario Puzo | Mario Bava | Mario Van Peebles | Mario Sorrenti | Mario Merz | Mário de Andrade | Mario Morales | Mario Martone | Mario Lopez | Mario Borghezio | Super Mario Bros. 2 | Super Mario Advance | Super Mario 64 | Mario Roatta |
Key figures closely associated with the movement are Giovanni Anselmo, Alighiero Boetti, Pier Paolo Calzolari, Luciano Fabro, Jannis Kounellis, Mario Merz, Marisa Merz, Giulio Paolini, Pino Pascali, Giuseppe Penone, Michelangelo Pistoletto, Emilio Prini, and Gilberto Zorio.
"Arte Povera" was essentially formed around two nucleus: one in Turin, with artists such as Michelangelo Pistoletto, Mario Merz, Marisa Merz, Giuseppe Penone, Giulio Paolini, Giovanni Anselmo, and Piero Gilardi; and one in Rome, with Alighiero Boetti, Jannis Kounellis and Pino Pascali.
He wrote essays and catalogues collaborating with artists and architects such as Giorgio Morandi, Alighiero Boetti, Mario Merz, Carol Rama, Pirro Cuniberti, Alberto Burri, Bruno Martinazzi, Piero Manai, Marco Gastini, Vittorio Gregotti, Achille Castiglioni, Michelangelo Pistoletto, Renzo Piano, Ettore Sottsass, among many others.