Cosio, who was self-taught, was first noticed in the Philippine art scene during the 1970s. He started in theater as a thespian prior to becoming a set designer. He was a member of the Saturday Group of Artists. From the 1970s to the 1980s, Cosio was the president of the Arts Association of the Philippines. His painting earned him a sponsorship from the
British Council and the
Pollock-Krasner Foundation. One of his known works is the
Art for Peace trilogy, which won an international competition in
Baghdad,
Iraq. Cosio is also a recipient of the City of Manila Award for Painting and Sculpture and the French government-bestowed
Ordre des Arts et des Lettres with a grade of Chevalier. ==Personal life==