Hans Ulrich Obrist is part curator, part critic, and part irrepressible mad scientist. He's also artistic advisor, with design legend Peter Saville, of the Manchester International Festival, which runs through July 19.  ARTICLE PUBLISHED: 07/10/09

Rirkrit Tiravanija and gallerist Tim Nye were great sports at the opening of the artist's most recent show, which featured a shiny ping-pong table, a legend of the paddle, and an audience of cranked necks.  ARTICLE PUBLISHED: 01/29/09