From 1959 to 1963, Bony took classes at the Demetrio Urruchua and Juan Carlos Castagnino's studios. Oscar worked as an assistant for Antonio Berni. He focused on imagery, and this phase of his life revealed a certain expression of realism, which then moved him towards the new figuration movement. For his early art, he proclaimed himself to be self-taught but later in life, he stopped working with art and began practicing photography. He was a photographer for a record label group in Argentina between 1967 and 1973. Throughout his career and work, he did many different positions. With those different positions, Bony learned the basics of his craft from Areco, but he always considered himself to be self taught. Bony moved to Milan after Argentina's military coup in 1976, returning to Argentina only after the end of the dictatorship in 1988. His work ranged from painting to live installations to video, finally focusing primarily on photography towards the end of his life. His work dealt predominantly with the theme of violence. Bony produced work on the theme of suicide, justice, execution and death.