The exhibition is opened with the work realized in the workshop at Nomas Foundation: Quello che avanza, prosecution of a study on light and colour, characterizing Alfredo Pirri’s everlasting research. Consisting of 144 prints, the work is the fruit of a research on the techniqe of cyanotype, which permits to produce large off-camera photographic prints, of variations of deep blue. 130 of the cyanotypes show the phases of working and the residue produced, while 14 are the result of a unique technique, with the use of feathers laid directly on the sheets, compounded of chemical substances and exposed to UV-rays. Among the other works, Gas (1990) combines conceptual and minimalist elements, evoking in the title an invisible matter that fills the surrounding space; Le squadre plastiche (1987-88), motionless as dumb witnesses, and at the same time with their painting reflected on the wall as pure energy; Verso N (2003), an installation whose fragments raise an imaginary horizon, a spiritual land crossed by beams of light radiating in the space, lighting up the colours of the painting; La stanza di Penna (1999), made of book covers arranged so as to create a city skyline, a landscape soaked by a diffused light resembling the colours of sunset. A connection between the two sections is Passi, that works as a threshold. It’s a site-specific installation made of a floor of mirrors, breaking into pieces under the steps of the artist and the observer, creating misshapen stories in dialogue with the surrounding space, its nature and history.