The purpose of this chapter of the book is to explain the concept of emotion and the structures of emotions, which shape human behavior and thought. The importance of emotions in organizational life is discussed, along with how possible results can affect emotions. Afterwards, gratitude, which is a relatively new research topic in organizational behavior, is explained together with its antecedents and possible consequences. In order to enable organizations to achieve their goals more easily, it is important to promote such a feeling in organizational life. For this reason, this section also discusses gratitude programs, through which organizations can foster a sense of gratitude from a human resources perspective.