provides a synthesis of research on nonverbal communication as it applies to interpersonal interaction, focusing on the close relationships of friends, family, and romantic partners. Authors Laura K. Guerrero and Kory Floyd support the premise that nonverbal communication is a product of biology, social learning, and relational context. They overview six prominent nonverbal theories and show how each is related to bio-evolutionary or sociocultural perspectives. Their work focuses on various functions of nonverbal communication, emphasizing those that are most relevant to the initiation, maintenance, and dissolution of close relationships. Throughout the book, Guerrero and Floyd highlight areas where research is either contradictory or inconclusive, hoping that in the years to come scholars will have a clearer understanding of these issues. The volume concludes with a discussion of practical implications that emerge from the scholarly literature on nonverbal communication in relationships – an essential component for understanding relationships in the real world. makes an important contribution to the development of our understanding not only of relationship processes but also of the specific workings of nonverbal communication. It will serve as a springboard for asking new questions and advancing new theories about nonverbal communication. It is intended for scholars and advanced students in personal relationship study, social psychology, interpersonal communication, nonverbal communication, family studies, and family communication. It will also be a helpful resource for researchers, clinicians, and couples searching for a better understanding of the complicated roles that nonverbal cues play in relationships.