Born in Tehran, Iran, Yektai dropped out of the Fine Arts Faculty of Tehran University without obtaining degree. Between 1945 and 1947, he studied with Amédée Ozenfant in Paris, France, and later in New York City. From 1946 to 1947, he studied at the École des Beaux-Arts and at the Atelier of André Lhote in Paris, France. From 1947 to 1948, he studied at the Art Students League of New York in New York City with Robert Hale.
Yektai became a naturalized American citizen in 1959.Wikipedia