The Chinese codebooks were essential tools for encoding and decoding confidential messages in the age of telegraphic communication under the Chinese Nationalist governance. Messages exchanged between high level officials were often encoded to prevent information leaks. Unlike the codes in English, one might wonder how the Chinese encoded telegrams as its writing system is entirely logographic.
During the processing of the Li Zongren papers and the Wellington Koo papers, Chinese telegraphic code books were found in the collections. Since these individuals were prominent statesmen during the Republic of China period, one would be curious to know how were these codebooks utilized by and how these codebooks are different compared to other telegraphic codebooks.