Abstract Expressionism

Salvaging 1950s Rauschenberg: The artist's early work goes on show in San Fransisco

This exhibition recovers missing works and provides clues for his development

Gerhard Richter survey at the Tate Gallery

Nick Serota launches into a new policy towards international contemporary art

Unfamiliar early Rauschenbergs at the Corcoran

A broad range of rarely exhibited works tour the US