The phone book, an object created when it met a real need, now belongs to an endangered species. Designed for professional purposes, it has gradually been used by everyone for family and personal uses. Are not social networks today a form of exacerbation of this object already from another time? A collective communication tool in which individuals were listed and listed, printed in ink, is embedded in this same ink. Laurent coats each page entirely covered with abstract calligraphy in Indian ink until a black page is obtained, connecting individuals who are no longer. The monochrome volume, having lost its functionality, even that of a simple book, becomes an obscure mass and loses all collective dimension in favour of its individuality.