Luca Des Dorides, PhD in Historical Sciences, contract professor at Bicocca University of Milan. His research interests mainly focus on marginality, with particular regard to the deaf people and the confinement to mental hospitals. He is currently engaged in Oral History in Italian Sign Language projects and visual digital tools for historical research. He has been in charge of the project for the recovery of oral sources in Italian Sign Language for the digital archive Ti segno la storia with the General Direction of Archives (Ministry of Cultural Heritage), for the Oral History School in Sign Language with the Italian Association of Oral History (AISO), for the italian inteviews with deaf elderly signers in the Horizon's 2020 project Sign Hub: preserving, researching and fostering the linguistic, historical and cultural heritage of European Deaf signing communities with a digital resource and for the Photographic Archive of the Pious Institute of the Deaf in Milan with the Pious Instituto Fundation and the Regione Lombardia government.