Sigmar Polke
Art marketnews
Roy Lichtenstein painting hidden in private collection for 25 years to be unveiled
Frightened Girl is part of a London exhibition devoted to the Ben-Day dot technique commonly used in pulp fiction comics
Sigmar Polkearchive
Pinault procures Polke paintings
Billionaire is set to open new Venice museum in 2009
Tatearchive
What Tate paid for art 2004-06
A complete list of Tate's acquisitions from the last two years, and what they paid for them
Sigmar Polkearchive
What's on in New York: Lelong remembers Mendieta while Polke shocks chauvinists
Serra celebrates at Gagosian’s while Grey Gallery plays dress-up