Arnold Edelstein, better known as Ed Arno, was born in the Austrian city of Innsbruck. He spent his childhood in Cernăuţi, a farmer's town in the Austro-Hungarian Empire. He studied at the Paul Colin Art School in Paris, France, between 1935 and 1937. It was in France that he published his first caricatures under the pseudonym Ed. Arno. He returned to Cernăuţi in 1939, where he resumed his activities as an illustrator and caricaturist.
Edelstein and his family spent four years in the Transnistria concentration camp. He was liberated by the Russian army in August 1944. He settled in Bucharest, where he worked as art director and illustrator for several publications of the Romanian Communist Party. He was an artist with the children's magazine Licurici between 1947 and 1952, making illustrations, covers and comics like 'Gică şi Tică, aşi sportivi' and 'Micii grădinari'. He also made a comic based on 'Gulliver's Travels' for Luminiţa between 1958 and 1960.
He became known for his caricatures in satirical magazines like Urzica and Krokodil, the latter from Russia. Jewish activists were banned from the party in the late 1950s, and Arno decided to emigrate in 1966. After several months in Italy, Edelstein and his wife finally settled in New York. He made about 230 drawings for The New Yorker between 1969 and 2001. His cartoons were also published in The New York times, Look, Saturday Review, Saturday Evening Post and Cosmopolitan. He passed away in his appartment on Long Island in May 2008.