Born in Paris Armand grew up in a family of successful artists. His father, Vincent Manago and his older brother, Dominique Manago, were respected artists although their styles were radically different from the young Armand’s. An independent streak led Armand to sign his work with the adopted surname of Guerin to mark him out from his family. He studied at the Ecole Nationale des Beaux-Arts in Paris where he was a student of Jean-Pierre Laurens among others. He became a noted figure amongst the French naïve school. His work is simple, spontaneous, unaffected with a childlike simplicity that belies the classical training behind its creation.