Laura K. Guerrero has been at Arizona State since 1996 where she teaches undergraduate and graduate level courses on relational communication, nonverbal communication, statistics, and research methods. Her research focuses on communication in close relationships, emphasizing nonverbal messages, emotion, and the "dark and bright sides of interpersonal communication. She is the co-author/co-editor of "Nonverbal Communication in Close Relationships" (Erlbaum), "The Nonverbal Communication Reader, Third Edition" (Waveland Press), "Nonverbal Communication" (Pearson), and the "Handbook of Communicat...