A protagonist of the art scene since the mid-1950s, Mario Nanni returns to Galleria d’Arte Maggiore with an important selection of original works, adding a crucial chapter to his reflections on the theme of maps, to directly engage the viewer in a new work-audience dialogue. This research began in the 1970s with the well-known cycle of the Geographies of attention and was resumed in the first years of the 21st century with the famous Games of metamorphosis, shown by Franco and Roberta Calarota in 2004. The maps, seen today in large sizes and on works that require the active intervention of the viewer, are like an ideal fil rouge that touches on some of the most significant junctures of the artistic career of Mario Nanni, who is convinced, as he emphasizes, "that the works must or should at least represent their historical time."