A possible influence on Pollock was the work of the Ukrainian American artist Janet Sobel (1894–1968) (born Jennie Lechovsky).[17] Peggy Guggenheim included Sobel's work in her The Art of This Century Gallery in 1945. With Jackson Pollock, the critic Clement Greenberg saw Sobel's work there in 1946.[18] In his essay "American-Type Painting," Greenberg noted those works were the first of all-over painting he had seen, and said, "Pollock admitted that these pictures had made an impression on him