Chao Shao-An, The Master of Ling Nan School The master of Ling Nan, Professor Chao Shao-An, is one of the most brilliant students of the Kao brothers. Under his brushes, the Ling Nan style was refined and raised to new heights. The essence of the paintings are expressed through strong and swift calligraphic strokes. It is completely spontaneous. Consequently, the images convey liveliness and spirit rather than just form. Professor Chao's Chinese watercolor paintings are regarded as national treasures in China. His paintings have been exhibited in museums all over the world including the Smithsonian Institute in Washington, D.C.