Cezary Ostrowski — born 30 September 1962 in Brzeg — Polish visual artist, electronica composer, sound designer and journalist. Creative Commons activist — initiator of the Creative Collective. One of the editors of ccMixter.org. Cezary Ostrowski studied arts, design and art theory at the Academy of Fine Arts in Poznań. Thesis on "Impossible Drawing" and "Next Music" - 1985. He is an author of theoretical works on drawing and music.