Photo taken on Jan 19, 2015 shows the Bulgarian version of Chinese President Xi Jinping's book "The Chinese Dream of the Great Rejuvenation of the Chinese Nation" in Sofia, capital of Bulgaria. The book consists of 146 expositions from Xi Jinping's more than 50 documents between Nov 15, 2012 and Nov 2, 2013, including his speeches, remarks, letters and instructions. (Xinhua/Wang Xinran)