Two books looking at the elaborations on the Scientific Outlook on Development by the four generations of China's leadership were published on Friday.

One book collects the concepts on the scientific development of Mao Zedong, Deng Xiaoping and Jiang Zemin, while the other compiles the elaborations of the Central Committee of the Communist Party of China, with Hu Jintao as general secretary, since the Party's 16th National Congress.

The Scientific Outlook on Development is an important guiding principle for China's economic and social development.

(Xinhua News Agency September 20, 2008)