sentences:  Tillers also continues to produce collaborative works with Warlpiri artist Michael Nelson Jagamara, represented by Fireworks Gallery.Tillers has exhibited widely since the late 1960s, and has represented Australia at important international exhibitions such as the "São Paulo Bienal" in 1975, "Documenta 7" in 1982, and the "42nd Venice Biennale" in 1986.Major solo surveys of his work include "Imants Tillers