Communication is commonly defined as the transmission of information. Its precise definition is disputed and there are disagreements about whether unintentional or failed transmissions are included and whether communication not only transmits meaning but also creates it. Models of communication are simplified overviews of its main components and their interactions. Many models include the idea that a source uses a coding system to express information in the form of a message. The message is sent through a channel to a receiver who has to decode it to understand it. The main field of inquiry investigating communication is called communication studies.

Psychology is the study of mind and behavior. Its subject matter includes the behavior of humans and nonhumans, both conscious and unconscious phenomena, and mental processes such as thoughts, feelings, and motives. Psychology is an academic discipline of immense scope, crossing the boundaries between the natural and social sciences. Biological psychologists seek an understanding of the emergent properties of brains, linking the discipline to neuroscience. As social scientists, psychologists aim to understand the behavior of individuals and groups.

Communications Psychology is a sub-discipline of Psychology that studies topics related to psychological sciences. Communications Psychology aims to provide a community forum for issues of importance to all psychologists, regardless of the sub-discipline. In the present book, ten typical literatures about Communications Psychology published on international authoritative journals were selected to introduce the worldwide newest progress, which contains reviews or original researches on Communications Psychology. We hope this book can demonstrate advances in Communications Psychology as well as give references to the researchers, students and other related people.