This is a professional and systematic work that explains Niklas Luhmann's social theory in Japanese. [Product Details] The core of Luhmann's theory lies in its unique framework of "understanding society not as human actions or consciousness, but as a chain of communication." From this perspective, social systems are treated as self-producing entities, and communication becomes the primary component of society. Luhmann theorized the distinction between system and environment, the role of communication, the relationship between meaning and information, and functional differentiation (the autonomy of subsystems such as economics, politics, law, and education), thereby depicting a social image different from traditional sociology ("autopoietic and self-referential system theory"). This book consists of 6 parts and 18 chapters, covering a wide range of topics from the launch of research projects to self-referential systems, meaning systems, the structure of society as a social system, and constructivist epistemology and methods of social description. The introduction positions Luhmann's theoretical attempts and the innovation of social theory, and each chapter carefully explains the main concepts and theoretical premises. For example, it systematically explains the theory of self-referential systems, methods of distinction and observation, the structure of communication, the understanding of functionally differentiated society, and system rationality. Luhmann's theory is considered difficult, but this book organizes the basic structure and terminology of the theory one by one, helping to facilitate a multifaceted understanding. The explanation also considers comparisons and positioning with Luhmann's own works and other social theories, as well as the impact on social theory as a whole, making it useful not only for researchers and graduate students in sociology, philosophy, and thought, but also for those who want to seriously engage with Luhmann's theory. [Product Condition] - Only read once after purchasing new - No writing or underlining - No noticeable scratches or stains It is in very good condition as a used item. It is being offered at a reasonable price for decluttering. [Shipping Method] Shipping is planned via Yu-Packet Plus. We appreciate your consideration, understanding that this is a used item.