Emotion research has become a mature branch of psychology, with its own standardized measures, induction procedures, data-analysis challenges, and sub-disciplines. During the last decade, a number of books addressing major questions in the study of emotion have been published in response to a rapidly increasing demand that has been fueled by an increasing number of psychologists whose research either focus on or involve the study of emotion. Very few of these books, however, have presented an explicit discussion of the tools for conducting research, despite the facts that the study of emotion...