Guillaume Sorel studied architecture and pursued some art studies. His first professional illustrations were published in Casus Belli, Scales, and Karpath. In 1991, he started his series 'l'Île des Morts' with writer Thomas Mosdi at Vents d'Ouest. In 1995, followed two independent albums, 'Mort à outrance' and 'Le Fils du Grimacier'. After 'Le Diable' for A.B.D., Sorel met François Froideval, with whom he made 'Mens Magna'.