Mayumi Oda, a renowned artist often called "the Matisse of Japan" whose work is part of the permanent collections of several of the world's leading museums, has exhibited over 50 one-woman shows internationally. Founder of Plutonium Free Future in 1992, Mayumi has long been a deeply committed international anti-nuclear activist, and is also the founder of Ginger Hill, a farm and a retreat center on the Big Island of Hawaii.