In the early 20th century, mass production had taken over ceramic production. In the 1940s-50s, British potter Bernard Leach pushed for a revival of handmade ceramics, known as the Studio Potter Movement. Leach studied clay techniques in Japan and emphasized handmade craftsmanship. He collaborated with Japanese potter Shoji Hamada at his studio in St. Ives, England. Their teachings influenced potters in America and Canada. Peter Voulkos was inspired by Leach and Hamada's teachings and later pushed ceramic art into abstraction, blurring the line between craft and art. His non-functional sculptures highlighted clay's expressive potential.