Nicholson produced iconic illustrations for several publications published by Heinemann at the end of the nineteenth century. These illustrations seemed to capture perfectly the closing of the Victorian era.
Encouraged by Whistler he progressed to painting with oil. Through the first half of the twentieth century he produced paintings of exquisite quality.
Laterly he was appointed as a Trustee of the Tate gallery and knighted.
During the 1930's he gave William Churchill painting classes, Churchill later said that he had learnt more from Nicholson than anyone else.