Semiotics has established itself as a science since the 1960s through international conferences, journals, and societies. It is interdisciplinary in nature, reflecting the latest trends and challenges of media society, and addresses current topics from all areas of culture and everyday life. This handbook presents the theoretical foundations of signs and communication in semiotics and introduces the basic concepts. It provides information about various theorists, theoretical approaches, methods, and research areas. The subject of semiotic analysis includes not only all linguistic, textual, and aesthetic expressions but also non-verbal communication and other sign phenomena from nature and culture. Winfried Nöth has completely revised and significantly expanded his Handbook of Semiotics. The structure is now much more differentiated.