This book offers a comprehensive introduction to Chinese and foreign historical sources and research on the Xiongnu. Set against the backdrop of world history, it takes a broad view of the entire process of the Xiongnu’s rise, flourishing, migrations, and decline. Drawing extensively on works and records in many languages, the author examines in depth every aspect of ancient Xiongnu life, including their geographic environment, economy, military and political systems, religious beliefs, language and customs, and cultural outlook. Among existing research on Xiongnu history, this work stands out for its length, range of sources, breadth of coverage, and scholarly quality. It is truly a comprehensive account of Xiongnu history.