A person's body language gives us important insight into what they're really thinking and feeling, and our own body language is a valuable communication tool. Being aware of what signals different aspects of body language send is an important part of being an effective communicator. Readers explore these different aspects—from facial expressions and hand gestures to posture and personal space—with the help of relatable examples, insightful facts, and full-color photographs. Sidebars introduce important topics such as setting boundaries and the relationship between nonverbal communication and autism spectrum disorder.