The first major publication in English on the bamboo slips excavated from a late fourth century B.C. Chu-state tomb at Guodian, Hubei, in 1993. The slip texts include both Daoist and Confucian works, many previously unknown. Thie monograph is a full account of the international conference held on these texts, at which leading scholars from China, the United States, Europe, and Japan analyzed the Laozi materials and a previously unknown cosmological text. In addition, the contents include nine essays on topics such as the archaeological background of the discovery, conservation of the slip-texts, and the relation of the Guodian Laozi materials to the received Laozi text. An annotated edition of the Guodian Laozi materials and the cosmological text are included, as well as a critical bibliography with summary of Chinese scholarship on the Guodian texts in the year following the conference.