Photo taken on Sep. 11, 2014, shows Chinese books inside the Chinese Pavilion in Tajik National Library, Dushanbe, Tajikistan, Sep. 11, 2014. Leaders of the Shanghai Cooperation Organization (SCO) member states are gathering on Thursday and Friday in Dushanbe, capital of Tajikistan, for a summit that is set to chart the course of the regional group's development for the next decade. (Xinhua/Liu Hongxia)