Following his return to Istanbul again, he participated in the famous "Harbor Exhibition", consisting of paintings of the city's dockworkers and fishermen by well-known Turkish painters of the time. The exhibition aroused widespread public interest, and that year Dino was asked to design the Turkish pavilion at the 1939 New York World's Fair. Meanwhile, he published articles and cartoons in several of the foremost magazines of that time, studying a new approach to realism together with his elder brother poet Arif Dino.