Material Matters, the third annual exhibition exploring artists and their media is being presented at Seager Gray Gallery in Mill Valley. The exhibition includes works by 16 artists working in cut paper, glass, weaving, clay, polymer, found photos, paint, salvaged steel, casein, charcoal, wood, altered book, steel, thread, cast lead crystal, and video. The artists included are Lucrezia Bieler, Joe Brubaker, Kim Bruce, Squeak Carnwath, Lia Cook, Stephen Paul Day, Ellen George, Andrew Hayes, Margaret Keelan, Lisa Kokin, Ted Larsen, Sibylle Peretti, Alexander Rohrig, Jane Rosen, Tim Tate and Barbara Wildenboer.