This book addresses the connections between emotional employee engagement, worker health, and the operational performance of organizations. It highlights the significance of health for quality of life and productivity in the future knowledge worker society and sheds light on the structural transformation of the workplace with its implications for leadership, corporate culture, and well-being. Furthermore, the authors discuss potential practical consequences, questions regarding the design of structures and processes, as well as principles and standards of occupational health management. Insights from over 50 companies, administrations, and service providers are theoretically substantiated and summarized in the first part. The second part revisits and deepens key topics, including presenteeism and burnout.