The aim of this volume is to introduce a complex field such as communication and communication science in a way that allows students to systematically find connections to the diverse and various areas of this subject and research field. The introduction seeks to foster an understanding of the phenomenon of communication and to enable the derivation of well-founded questions that facilitate comprehension of the discussions in research. Efforts will be made to establish links to modules in the various bachelor's programs in communication science. The intention of this volume is not to provide an introduction to the practice of communicative action. The goal is to offer a guide in the broad field of communication science.