Petroglyph is a pioneer of the contemporary ceramics studio industry. Founded in 1993, Petroglyph operates four studios in Northern California -- in Santa Cruz, Los Gatos, Willow Glen (San Jose), and Roseville -- and continues to develop and refine the "paint your own ceramics" studio concept. In 2012 Petroglyph launched Glow Candle Lounge, a new creative concept studio where customers personalize candles. The flagship Glow opened in Willow Glen in November 2013.