This book presents both the fundamentals for understanding motivation and emotion in learning and work contexts, as well as examples of how to work with these concepts in various application areas. The focus is on clearly conveying how theoretical knowledge about motivation and emotions can be utilized in practical applications. In the first part, theoretical foundations, diagnostic and support options for motivation and emotion in general are presented. Some of the most fruitful theoretical approaches for research and practice are introduced, such as those related to self-concepts of ability and self-esteem. The second part is dedicated to various application contexts. It illustrates how knowledge of motivation and emotions can be applied in areas such as school psychology, psychotherapy, and human resources.