In recent decades, increasing attention has been drawn to the materiality of written sources themselves, an innovative and necessarily interdisciplinary field of investigation that requires critical attention and specific, renewed training. Recent investigations have indeed made it possible to attribute specific meaning to the different writing media and their availability, to the different forms of layout of the contents, to the writings on the margins and to the signs of use, with significant repercussions on the very interpretation of the testimonies and the memories built upon them. This is coupled with new technologies that enable the full recovery of lost texts, i.e. consciously discarded memories, such as palimpsests.