Public Administration: Theory–Practice–Change is a comprehensive introductory book that examines public administration through its theoretical foundations, practical dimensions, and dynamics of transformation. The book approaches public administration not merely as a technical field of administrative practice, but as a multidimensional discipline shaped by political, social, and institutional contexts. The book has systematically addressed core concepts such as management and public administration, the governance approach, public–private sector relations, strategic management, and debates concerning the nature of the state. The historical development of public administration, classical approaches, studies of organizational behavior, and the politics–administration relationship have been analyzed in a manner that reveals the intellectual evolution of the discipline. In this respect, the book has offered a holistic perspective on the principal theoretical debates within the field of public administration. The book has also examined the scope of public administration, along with authority and responsibility relations, within the framework of centralization, deconcentration, and decentralization principles. Bureaucracy has been evaluated through its theoretical foundations and its relationship with politics, while the public policy process has been analyzed in terms of its actors, analytical methods, and decision-making mechanisms. Furthermore, the effects of globalization, the New Public Management approach, and the information society have been discussed under the theme of change and transformation in public administration. The constitutional structure, organizational forms, oversight mechanisms, and public personnel system of public administration in Türkiye have been examined as a concrete country case. In doing so, the book has effectively bridged theoretical knowledge with administrative practice. Public Administration: Theory–Practice–Change serves as a fundamental reference source for students of public administration, as well as for academics and practitioners in the field. With its academic language, systematic structure, and comprehensive content, the book provides a reliable framework for readers seeking to understand and critically interpret public administration.