James Siena (born October 28, 1957) is an American contemporary artist. His art is typically created through a series of self-imposed constraints afterward sometimes referred to as visual algorithms —rules Siena decides on before sitting all along to work. In most of his sham he establishes a basic unit and exploit and repeats it indefinitely. While originally official for his paintings using enamel paints on aluminum plates, Siena has plus become known for his drawings, prints, typed works upon paper using vintage typewriters, and sculpture. Sculptures have ranged from made with his own hands using common materials such as: toothpicks, bamboo skewers bound later than string, and grape vines to his larger sculptures that have been realized in bronze and wood in partnership following the Walla Walla Foundry. He is based in New York City.