The economic management of spare parts is becoming increasingly important due to the growing use of equipment and the increase in capital invested in it. Automation, mechanization, and the economic interconnection of systems lead to significant losses in success during operational failures, which can be mitigated through appropriate spare parts or reserve parts storage. This book addresses spare parts management from the user's perspective. It provides foundational knowledge and practical guidance on planning, procurement, disposition, and organization of spare parts management, taking into account various maintenance and material management objectives, illustrated with numerous examples from theory and practice. It is aimed at students of industrial engineering interested in detailed questions and practitioners working in the field of spare parts management.