The textbook "Business Administration of Public Administration" by Walter de Gruyter provides a comprehensive introduction to the business aspects of public administration. It covers fundamental concepts and techniques that are important for the management and organization of public institutions. The structure of the book is clearly organized and includes various topics, such as decision-making processes, planning techniques, human resources, and accounting. The second edition of the work offers an in-depth analysis of administrative business studies and is thus of interest to both students and professionals in the field of public administration. The content is written in German and provides a solid foundation for understanding the complex relationships in public administration.