This book covers developments in multi-scale and multifunctional coatings, including strategies in the preparation, characterization, and properties of both thin and thick multifunctional coatings along with their corresponding application. Various technologies for processing, characterization, and tribology effects of various coating surfaces and interfaces are discussed. It describes smart surfaces like piezoelectric materials, shape memory alloys, shape memory ceramics, magnetostrictive materials, electrostrictive materials, dielectric materials, and advanced ceramics. Explains multifunctional materials with respect to their tribology behavior at surface and interface. Covers analysis techniques for multifunctional surfaces and interfaces. Discusses emerging applications of multifunctional surfaces. Explores multifunctionality of thin films as well as thick coatings. This book is aimed at graduate students and researchers in metallurgical engineering, materials science, and nanosciences.