new direction in American painting, away from abstract expressionism. In 2007 curator Karen Wilkin curated an exhibition called Color As Field: American Painting 1950–1975 that traveled to several museums throughout the United States. The exhibition showcased several artists representing two generations of color field painters. In 1970 painter Jules Olitski said: I don't know what Color Field painting means. I think it was probably invented by some critic, which is okay, but I don't think the phrase means anything. Color Field painting? I mean, what is color? Painting has to do with a lot of things. Color is among the things it has to do with. It has to do with surface. It has to do with shape, It has to do with feelings which are more difficult to get at. Jack Bush was a Canadian abstract expressionist painter, born in Toronto, Ontario in 1909. He was a member of Painters Eleven, the group founded by William Ronald in 1954 to promote abstract painting in Canada, and was soon encouraged in his art by the American art critic Clement Greenberg. With encouragement from Greenberg, Bush became closely tied to two movements that grew out of the efforts of the abstract expressionists: color field painting and lyrical abstraction. His painting Big A is an example of his color field paintings of the late 1960s. During the late 1950s and early 1960s Frank Stella was a significant figure in the emergence of minimalism, post-painterly abstraction and color field painting. His shaped canvases of the 1960s like Harran II, 1967, revolutionized abstract painting. One of the most important characteristics of Stella's paintings is his use of repetition. His Black Pin Stripe paintings of 1959 startled and shocked an art world that was unused to seeing monochromatic and repetitive images, painted flat, with almost no inflection. During the early 1960s Stella made several series' of notched Aluminum Paintings and shaped Copper Paintings before making multi-colored and asymmetrical shaped canvases of the late 1960s. Frank Stella's approach and relationship to color field painting was not permanent or central to his creative output; as his work became more and more three-dimensional after 1980. In the late 1960s Richard Diebenkorn began his Ocean Park series; created during the final 25 years of his career and they are important examples of color field painting. The Ocean Park series exemplified by Ocean Park No.129, connects his earlier abstract expressionist