The 31st Salon du Livre Claude Mercier: Regional Language Spotlight stands as a premier regional language manifestation that transforms the historic landscape of Salle des Primevères into a hub of cultural activity. Deeply rooted in ancestral customs, this gathering honors the historical narrative and cultural evolution of the region. The celebration acts as a cornerstone of local character, embodying the authentic and diverse soul of the department. The visitor experience is defined by an immersive program featuring a rich variety of curated workshops and artistic showcases. The event generates a meaningful social impact, fostering community engagement and the democratization of culture. Academics value the proceedings as a significant source for analyzing the evolution of regional language and intangible heritage. By protecting the heritage of the past, the festival secures a vibrant and sustainable cultural future for the region.