In France and French-speaking countries, Matthieu Chedid is celebrated as a singer-songwriter-composer and actor, exploring genres like Funk, Rock, and French variety. His album "Lettre Infinie" revolves around the significance of the color blue, tied to the anticipation of his first child. The title cleverly plays with the concept of infinity, reflected in the cover's repeated "M" letters forming graphic lines. Handwritten lyrics inside the CD and vinyl provide a personal touch, contrasting the cover's cold graphic style and creating a warm, intimate atmosphere. Designing the entire project solo was a significant challenge, teaching the importance of rigor in each design phase, especially regarding layout and packaging. This rewarding journey culminated in creating objects to be proud of, collaborating with a highly valued artist.