This present Methodology Guide mainly gathers insight and an overview of the Socio-historical background of EU deaf culture, helping to valorize and disseminate the richness of their culture and linguistic heritage. The Guide also includes an analysis of the existing situation from the perspective of the reality that the project target group faces in their daily lives, based on field research carried out from six European countries such as Italy, Greece, Poland, Sweden, Croatia and Slovenia. Furthermore, it includes 7 Thematic Lessons in each project country’s Sign Language, plus the International one, as well as a video recording guide.