The smooth functioning of an industrial plant requires a number of corrective, preventive and predictive maintenance strategies. Such strategies involve operational and functional checks, repair and replacement of components, servicing, building infrastructure, etc. Preventive maintenance is performed with the intent of avoiding failures, production costs, losses and safety violations. Corrective maintenance is applied to malfunctioning equipment, and may involve processes such as welding, metal flame spraying, etc. Due to the advent of sensing and computing technology, predictive maintenance has become a possibility. It involves sensors to monitor key parameters of the system health and predict any breakdown before it happens. This textbook is a compilation of chapters that discuss the most vital concepts in the field of industrial maintenance. Different approaches, evaluations and methodologies in this field have been included in this book. It will serve as a reference to all professionals and students associated with this field.