Book excerpt: Successful Nonverbal Communication: Principles and Applications demonstrates how knowledge of nonverbal messages can affect successful communication in the real world. Now with fifteen chapters, the fifth edition draws students in through applications of the latest nonverbal communication research and through current examples of celebrities, sports, and politicians. This extensive revision describes nonverbal cues and their desirable and undesirable functions while offering original tests for measuring and developing nonverbal communication skills. Updates include new attention to Donald Trump, Hillary Clinton, and Barack Obama, and discussion of nonverbal communication within same-sex partnerships.