A decoration all made of 1 and 0, the two digits of the binary system. I designed this way (with Claudio Rossi, Matteo Buccoli and Francesca Oggiano ) graphics and signage system for the new Library of the Faculty of Engineering of Cagliari, designed by arch. Pier Francesco Cherchi. The colors are the same of furnishings, and there is a little surprise when the sliding glass doors open and close: the overlapping of 1 and 0 composes the word “biblio”.