Gu Ban (32–92 AD), also known as Jian Meng, was a historian, geographer and writer during the Han dynasty. He loved reading and field trips. He travelled with the emperor to more than half of the country. His historical masterpiece, the ‘Book of Han’, was the first annals-biography format about the history of a single dynasty. The ‘Treatise on Geography’ was the first geography book to use the term geography in Chinese history and the first memoir of its kind to describe the geography of different Chinese territories. Other treatises, such as the ‘Treatise on Food and Money’ and ‘Treatise on Rivers and Canals’, contributed greatly to research on economic geography, and the ‘Treatise on Astronomy’, ‘Treatise on Rhythm and Calendar’ and ‘Treatise on Five Elements’ are important for research in history and physical geography. The ‘Biography on Western Regions’ and ‘Biography on Huns’ are valuable documents for studying the history and geography of the ancient Chinese frontiers.