This edition includes a substantial revision of the theory and intervention chapters, with a focus on the most popular theories currently thriving in the field, a discussion of environmental and policy influences on behavior, and an expanded presentation of intervention components, design, and evaluation. Separate chapters are also dedicated to popular topics such as personality, self-perceptions, stress, anxiety, depression, emotional well-being, cognitive function, and health-related quality of life. For those seeking to learn more about exercise behavior, The Psychology of Exercise: Integrating Theory and Practice is a must-have resource.