Bedford Gallery in Walnut Creek, CA shines a spotlight on artists who use air as a sculptural medium in their show "BLOW UP," on view April 26 through June 21. The featured artists are Claire Ashley, Lee Boroson, Lewis deSoto, Patrick Flibotte, Billie G. Lynn, Guy Overfelt, Momoyo Torimitsu, Christo and Jean-Claude, and Andy Warhol, and each person has his or her own unique take on inflatables.