In which books does Descartes propose his ideas about mind-body dualism?
Then you can see at least :
Desmond M. Clarke, Descartes's Theory of Mind (2005)
Lilli Alanen, Descartes's Concept of Mind (2009)
Dennis Des Chene, Spirits and Clocks: Machine and Organism in Descartes (2001).
About D's works, you can see his first book, the Treatise of man (written before 1637, but only published posthumously, first in an imperfect Latin translation in 1662, and then in the original French in 1664).