"Da River: The History of a Border Region of Vietnam" is a massive research work, a great collection of the history of the northern highlands by historian Philippe Le Failler on the history of the Da River region – a special geographical, historical and cultural space, Vietnam's border area with Laos and China. The author has exploited and distilled materials from national history, records of local officials, expeditions, as well as from the rich archives of the French civil and military authorities, to create a comprehensive, profound and vivid picture of the history of a border region from the eleventh century to the beginning of the twenty-first century.