Zhang Daozong's surviving biographical information is extremely limited; public sources record no clear details about his nationality, dates of birth and death, courtesy name, or career, so his life cannot yet be outlined. What can be confirmed is that two of his works are held in the collection, Ji Gu Dian Shuo Ji and Ji Gu Dian Shuo Yuan Ji, both classed as classic works. Judging from their titles and subject matter, the two books deal with historical anecdotes and local legends of the ancient Dian region (present-day Yunnan) and bear a clear character of local history and miscellaneous notes, making them important texts for understanding early local narratives of Yunnan. Their similar titles suggest they may be different compiled forms of the same work, though the exact process of composition and the textual relationship between them await further study. Zhang Daozong's writing focuses on collecting old accounts and setting out local customs and conditions; his language is plain and his narration notable for its orderly arrangement, and his value lies chiefly in preserving and organizing memories of the ancient history of the Dian region. Owing to limited materials, his life and associations await the discovery of new sources.
