In 1938 he published a manual of art for high schools, while in the 1940s he collaborated to the magazine Primato, founded and directed by Giuseppe Bottai, another Fascist gerarca. After World War II, he taught in universities Palermo and, from 1959, in Rome. Argan co-founded the publisher Il Saggiatore and he was a member of the Superior Council of Antiquities and Fine Arts (predecessor of the Ministry of Culture), in which he remained until 1974. In 1968 he published his most famous work, Storia dell'Arte Italiana. In 1973 he founded Rome ISIA, Italy's oldest institution in the field of industrial design.