Complex sentence: Later, in 1947, he made prints for book illustrations and in 1948 he showed his art at the important Venice Biennale That same year, he exhibited at the Galerie d'Art Moderne in Basel, Switzerland.
Split into simpler sentences: Later, in 1947, he made prints for book illustrations. In 1948 he exhibited some of these works at the Galerie d'Art Moderne in Basel, Switzerland.