 He is well known for his challenging, ground-breaking work as a pioneer in the field of net.art.His constantly evolving oeuvre is characterized by an interesting mix of philosophical, political, and conceptual network-related issues on the one hand, and an innovative feeling for contemporary urban and underground aesthetics on the other.One of the pioneers of net.art, Ćosić became deeply interested in ASCII code during a long period of research (1996–2001) on low-tech aesthetics, the economy, ecology and archaeology of the media, on the intersections between text and computer code, on the use of spaces in information, its fluid nature and infinite convertibility.