Paul Van Dyke works in many languages and archives to uncover the history of Pearl River trade. This two-volume work is likely to be the most definitive reference work on the major trading families of Guangzhou. Organized as a series of family studies, this first volume includes exhaustive profiles of nine of the dominant hongs and their founding patriarchs for which good information survives: Tan Suqua, Tan Hunqua, Cai and Qiu, Beaukeequa, Yan, Mandarin Quiqua, Ye and Tacqua Amoy, Zhang, and Liang.Paul Van Dyke is associate professor of history at University of Macau.