Ivo Gattin was one of Croatia’s foremost practitioners of art informel. He graduated from the Akademija likovnih umjetnosti (Academy of Fine Arts) in Zagreb in 1953. Gattin’s approach to painting was anti-expressive, directly addressing materiality. He used such substances such as resin, wax, and cement on the surfaces of his early pictorial works of 1956–57, later turning to burning his canvases and incorporating burlap to create reliefs in irregular shapes. Working in Milan from 1963 to 1967, Gattin created encyclopedia drawings and a manifesto, among other works. Gattin was associated with the radical Conceptual art collective Gorgona Group, which included Julije Knifer (1924–2004) and Dimitrije Bašičević (also known as Mangelos) (1921–1987). The group produced exhibitions, a magazine of artist projects, and events in Zagreb from 1959 to 1966. The artists’ “tendency toward nihilism and metaphysical irony,” according to art historian and curator Nena Dimitrijević, sharply contrasted with the Yugoslavian state-approved social realism at the time.