This text offers a complete and precise explanation of the principles of nonverbal communication. The Fourth Edition continues to provide students with involving and interesting reading that explores how nonverbal behaviors can produce certain communication responses from others. This well-researched book offers conclusions about the research in an easy-to-read and student-friendly style. The authors draw from a wide variety of disciplines and upon their vast experience as instructors, consultants, and corporate trainers to offer a unique blend of social scientific and humanistic approaches to the study of nonverbal behavior. Each chapter includes exercises, activities, self tests, or questionnaires that help students understand the actual and potential impact of nonverbal behaviors on communication. It also helps students build the skills they will need to become competent nonverbal communicators in today's global community.