The launch of generative AI, exemplified by ChatGPT, has fundamentally transformed the business landscape, moving AI from the boardroom to every corner of the organization. This book acknowledges the democratization of AI while asserting that the core challenge of digital transformation remains the same: how to move beyond the hype and create scalable, tangible economic value. Drawing on over 15 years of practical experience, the book serves as an essential guide for leaders who understand that harnessing AI is not just a technology problem, but an organizational one. The book is structured to directly address the critical, high-stakes decisions every organization faces on the journey to integrating AI. It includes a section dedicated entirely to generative AI, contrasting its capabilities with classical machine learning and explaining how organizations can start creating value even without prior data. The book is organized into four other crucial sections: Organization, Business and Finance, Technology, and Responsible AI. Whether you are a new Chief Data Officer establishing your mandate, a CEO seeking clarity on the required investments and expected returns, a CFO looking to fund the data journey, or an AI professional aiming for a leadership role, this book provides the practical, lessons-learned approach you need.