Theo Keller developed a passion for fine art at an early age, growing up in a pottery, sculpture, and painting studio in Maine. Surrounded by artisans, he explored various crafts but was ultimately drawn to molten glass. By 18, he had already spent years honing his photography skills but chose to pursue glassblowing, beginning a formal apprenticeship with sculptor and beadmaker Lewis Wilson in New Mexico. He further studied under renowned glass artists, including Bandhu Scott Dunham, Roger Parramore, and Italian master Emilio Santini, as well as at Penland School of Crafts. Today, he operates his glass studio in Turtle Creek, Pennsylvania, where he continues to refine his craft and create unique works of art.