Born on Sardinia, Antonio Cossu eventually settled in Brussels, Belgium. While studying at the Institut Saint-Luc in Brussels, he published his first work in magazines like Curiosity Magazine and Spatial. At the Saint-Luc's Atelier R, he cooperated on the third edition of Le Neuvième Rêve, for which he created a first version of 'Boskovich'. After a brief appearance in Aïe!, he made his debut in Spirou with the series 'Alceister Crowley' in 1980.