This comprehensive chapter explores the critical role of IT governance in aligning an organization’s IT strategy with its business objectives. It elucidates the key components of IT governance such as its definition, various frameworks, strategic alignment, investment prioritization, service management, risk assessment, compliance, audit, project management, vendor management, metrics, performance measurement, and its role in mergers and acquisitions, change management, and business continuity planning. The chapter stresses the importance of IT governance processes for IT leaders, explaining their role in strategic alignment, value creation, risk management, compliance, resource optimization, and continuous improvement. The chapter also promises further exploration into specific aspects of IT management in subsequent chapters, with a focus on real-world examples and case studies.