Li Changchun (2nd R), member of the Standing Committee of the Political Bureau of the Central Committee of the Communist Party of China, Chinese State Councilor Liu Yandong (1st R) and British representatives push a light ball, marking the opening of the Market Focus activity of this year's London Book Fair in London, capital of Britain, April 15, 2012. China is honored as the Market Focus at this year's London Book Fair, one of the world's largest book fairs which will kick off on Monday.[Photo/Xinhua]