Guillaume is creative director at Grenade & Sparks, a digital advertising agency based in Paris. He started his career as a copywriter and strategic planner at Young & Rubicam under the direction of the talented Bruno Lemoult, Jean-Paul Bacquer and Gabriel Gaultier. He then worked for independent agencies when joining Dufresne Corrigan Scarlett as Creative Director and Grenade & Sparks. Passionate about art, he is also the co-founder of S.H.A.G. (Seriously Hazardous Art Gallery), an art space specialised in scouting new talents on social media platforms. His two best artworks: his sons.