This book explains general and specific business management statements about the multitude and diversity of human activities in industrial and service companies, the commercial economy, freelance professions, private households, foundations, associations, and other non-profit organizations, as well as in state and municipal administrations. This broadens the foundation of business management. This comprehensive and overarching textbook, which includes interdisciplinary areas, thus provides insights, knowledge, and recommendations for action applicable to all professional fields. Each chapter contains learning objectives as well as numerous practical case studies with corresponding problem statements and solutions. Additional self-study questions facilitate optimal exam preparation.