This book traces the progress of the field of heat transfer engineering and highlights some of its key concepts and applications. Heat transfer refers to the study and applications of engineering practices used to transfer and exchange thermal energy and heat from one physical system to other. It has various mechanisms like thermal radiation, thermal conduction, transfer of energy, thermal convection, etc. These studies are applied in different engineering subjects like automotive, materials processing, power station, climate engineering, etc. The topics introduced in this book are of utmost significance and are bound to provide in-depth knowledge about this topic to readers. It is a compilation of chapters that discuss most vital concepts and emerging trends in this field. Students, scientists, engineers, researchers and all those interested in heat transfer will find this book greatly beneficial.