The maintenance function will be approached within the framework of the organization of the company, the analysis of the fundamental goals of the maintenance, and the introduction of important concepts from the organizational point of view. This book highlighted the training needs of staff who develop their work in the field of maintenance, operators, and department heads. Various costs associated with the development of maintenance will also be discussed.The different types of maintenance and the relationship between them, the logical sequence of action will be discussed, depending on the type of equipment or facilities to maintain and their complexity, the analysis of the recommended application of the most advanced technique. Linking maintenance with design, production, and safety. We review the most important predictive maintenance techniques, focusing on the range and instrumentation required in each case. We will also focus on the integration of different techniques, based on complementarity and value for money.