He was co-founder of the independent comics publisher L'Association in 1990, and has been a part of Oubapo since its creation in 1992.

Patrice Killoffer studied at the School for Applied Arts Duperré in Paris in the 1980s.

His teachers included comics authors Georges Pichard and Yves Got, who influenced him in his early works.

More recently, he has published in the magazine Psikopat and he produces illustrations for the newspapers Libération and Le Monde, and writes a column for La Vie.

[4] Apart from his teachers, Killoffer cites as his influences the Dutch artists Willem and Joost Swarte.