The eight-volume set systematically studies the phonetic and lexical system and evolution of the Chinese language in three phases. The history of the Chinese language is generally split into three phases: 1) Old Chinese, the form of the Chinese language spoken between the 18th century BC and the 3rd century AD, 2) Middle Chinese, between the 4th century AD to around the 12th century AD, and 3) Modern Chinese, since the 13th century, comprised of an 'early modern' phase before the early 20th century and the contemporary period since. The first three volumes examine the phonetical systems of the language in each period and distinct changes across time, covering the initials system, finals system and tone system. The subsequent 5 volumes focus on lexical development throughout the different phases. The author also analyses basic issues of Chinese language study, the standardization of a modern common language and the foreign influence on the lexicon, helping us to better understand the history and development of the Chinese language. Illustrated with abundant examples, this comprehensive groundwork on Chinese phonetical history will be a must read for scholars and students studying Chinese language, linguistics and especially Chinese phonetics and lexicon.