[SEE ATTACHED] K.-T. Chen (1923-1987) is best known to the mathematics community for his work on iterated integrals and the interaction of topology and analysis through path integration. The present work is a comprehensive collection of Chens mathematical publications, covering a wide range of topics. An outstanding and original mathematician, Chens work falls naturally into three periods: his early work on group theory and links in the three sphere; his subsequent work on formal differential equations, which gradually developed into his most powerful and important work; and his work on iterated integrals and homotopy theory, which occupied