This is a short version with English subtitles of a documentary video on the present state of the project Textus invisibilis as concerns the collaboration of the Urbino University with the historical archives and libraries of the Northern Marche region in Italy (Unione Montana Catria e Nerone).
This full-version documentary video introduces the overall aims and research methods developed in the project, as well as interviewing our partners and collaborators from Italian and European institutions.