Step-By-Step in Plant Maintenance and Works Services is a practical and comprehensive guide designed to support students, technicians, and practicing engineers in understanding the fundamentals of industrial plant maintenance and works services. The book presents maintenance concepts in a clear, systematic manner, covering key areas such as preventive and corrective maintenance, equipment servicing, fault diagnosis, lubrication practices, and utilities management within industrial plants. Emphasis is placed on real-world applications, making the content particularly relevant to technical institutions and industry practitioners. The authors integrate theoretical principles with hands-on experience, enabling readers to develop problem-solving skills and practical competence. Written in simple and accessible language, the book serves as both a learning resource and a reference manual for workshops, factories, and training centers. Overall, Step-By-Step in Plant Maintenance and Works Services contributes significantly to capacity building in mechanical and plant engineering by promoting efficient maintenance practices, improved equipment reliability, and sustainable industrial operations.