Started working in glass in 1985.
Warren has been Cold Working and Kiln Casting glass since 1985 and it all began in Sacramento California. His education includes four years of study with the Glass Department at the California College of Arts and Crafts (now called California College of the Arts), one semester of study in the Czech Republic, Kiln Casting at Pilchuck Glass School 1989 and Glass Engraving, also at Pilchuck in 1999. Upon leaving CCAC Warren promptly opened his own Cold Working studio, where for 12 years he has offered Cold Working services to dozens of San Francisco Bay Area glass artists. Today Warren teaches Kiln Casting Glass Sculpture and Cold Working at The Crucible, an Industrial Arts School in west Oakland California. Warren maintains his private studio at The Crucible working full time creating his own kiln cast and engraved art work.