Dielectric materials are insulators that can be polarized when placed in an electric field. These materials are used for the storage and dissipation of magnetic and electric energy. Dielectric materials engineering is mainly concerned with the design and development of dielectric materials for industrial as well as domestic usage. These materials include industrial coatings, mineral oils, electrets, piezoelectric materials, capacitors, resonators, etc. This book traces the progress of this field and highlights some of its key concepts and applications. It is appropriate for students seeking detailed information in this area as well as for experts. It elucidates the current theories and innovative models around prospective developments with respect to dielectric materials. The aim of this text is to provide an in-depth understanding of this discipline and unravel the unexplored aspects related to it.