A Playful Pioneer of the Slovak Avant-garde Július Koller (1939–2007) remains one of the most singular and captivating figures in the history of Slovak art, a creator whose work breathed life into the margins of the post-war avant-garde. Born in Piesťany, Slovakia, Koller’s artistic journey was forged in the complex intellectual climate of communist Czechoslovakia. During an era when cultural production was strictly divided between official state-sanctioned art and a clandestine "free" scene, Koller navigated a path of radical independence. He did not merely seek to create objects for galler…