This report is intended to provide the readers with a comprehensive look at the state of the art of composite materials technology, with particular attention on how to go about selecting right material for a given application and inversely finding new applications for a given composition. A rationable is presented herein which reaffirms needs of composite materials presently in use and of further search of better application methdos and new and better materials. Much of the up-to-date information has been included in the form of tables and figures. In the course of fulfilling these aims, relevant concepts, methods and classifications are introduced wherever appropriate to relate theoretical aspects of the technology to practical applications.