This book is a comprehensive guide that equips organizations and individuals with the necessary tools and knowledge to streamline operations, optimize resources, and deliver superior customer value through implementing lean Six Sigma methodologies. It provides a practical roadmap for achieving process, product, and service improvement. The book introduces readers to the powerful framework of lean Six Sigma, combining lean and Six Sigma methodologies. It takes readers through the DMAIC model – Define, Measure, Analyze, Improve, and Control – providing a structured approach to identifying inefficiencies, reducing defects, and enhancing overall business performance. It covers essential topics such as lean Six Sigma leadership, change management, project management, and a detailed explanation of each phase of the DMAIC process. This book is designed to cater to a diverse audience, including executives, managers, quality professionals, improvement professionals, engineers, operations professionals, customer service professionals, and students. The book offers practical knowledge, tools, and case studies to drive transformative change and build a sustainable competitive advantage.