Boost the reliability and efficiency of complex engineering systems with advanced fault diagnosis and prognosis techniques. This essential guide delves into cutting-edge methodologies, including signal processing, machine learning, and data-driven models, enriched with expert-led case studies. It empowers engineers and researchers across India to master predictive maintenance and predictive analytics, vital for optimizing operational efficiency and minimizing risks. A crucial resource for mechanical, electrical, and industrial engineering professionals and students, this book provides practical insights to enhance system performance and ensure proactive maintenance strategies.