The Diary and Letters of Dr. Hu Shih (Peking University Library Collection) contains Hu Shih’s diary from his Chengzhong School days, an incomplete diary entry of Hsu Chi-Mo (Xu Zhimo) copied by Hu Shih, 116 Chinese letters, and 141 English letters. Among these, Hu Shih’s diary at Chengzhong School is his earliest one discovered so far, dating back to 1906, a time when he started to receive modern education and encounter modern thoughts. Considering that most of Hu Shih’s letters have already been published, the letters included in this book are even more valuable. Apart from the letters written by Hu Shih and his family members, this book also includes letters written by famous scholars and important figures at that time, such as Jiang Menglin and Fu Sinian. The English letters were mostly from the years when he was ambassador to the United States, which , from another angle, tell us something about hhis communication with western scholars and his strenuous effort to support China’s war against Japan.