different combinations of sprayed color dots, a form of pointillism. Based on Seurat's works, a series of "After Seurat" works were painted. In 1971 he continued the spray gun technique, but began using New York city-scenes as a subject and his camera as sketching tool. In 1972 he launched studies on industrial scenes with vivid images. In 1974 he completed a series of "Soho District" works such as "Soho West Broadway" by using telephoto lenses taking pictures of New York Soho building facades, then in 1975 he painted bird's-eye view street scenes of New York City. In 1977 he completed "Lunch Time", featuring people as a subject for the first time, using acrylic spray on canvas. He completed his first self-portrait in 1981. In 1983 he began using brushes to paint watercolor and ink on paper. In 1985, he continued using two different techniques, his subjects being street crowds and bird's eye views of intersections of New York streets. In 1986 he continued to paint subjects of New York street crowds using acrylic spray on giant canvasses. In 1989 he began a series of paintings of "Mount Huang", employing a similar technique to his ink on paper for the New York street crowds. In 1998 he began making rubbing prints of New York City street textures of manholes and graffiti, doing the same in Taipei the next year. Teaching In 1976, he started instructing an apprenticeship program at the Graduate School of New York University. Han served as a visiting artist for the School of the Art Institute of Chicago from 1979. In 1988 he taught at St. Thomas Aquinas College as a visiting professor. Personal life Han was born in 1939 in Chongqing, China; Han's family originally came from Xiangtan, Hunan. In 1942 he 1942 moved to Baogi, Shangshi with parents, and in 1946 they returned to Xiangtan. In 1948 he moved to Quinmin, Yuennan with his mother, then in 1951 he went to Taiwan via Hong Kong, Macao and joined his father. In 1964 his father died and he met Tsaishuan Chung. In 1968 Chung came to the United States, and married Han. They divorced in 1977. In 1979 he met Alice Yu at Taipei Printmaker's Art Gallery, and then she visited New York. They married in 1980, and their daughter Eve was born later that year. His second daughter Jacqueline was born in 1981. In 1999 he