Positive psychology can be thought of as the scientific study of what is "right about people" as opposed to the traditional focus on the healing of psychological pain or trauma. The philosophical roots of positive psychology can be traced back to Confucianism, Taoism, Buddhism, Hinduism, Judaism, Christianity, as well as Islamic and Athenian teaching and other ancient scholars, philosophers, and spiritual leaders. Thus, positive psychology is an integrative framework that draws upon the enduring themes and values across time periods and cultures to test theories using scientific tools designed to discover not only the elements of human well-being, but also the means by which that well-being can be experienced by all individuals. School psychologists can engage in action research to implement the strategies of positive psychology regarding signature strengths (courage, justice, humanity, temperance, wisdom, transcendence) to help children identify and cultivate their own. Encouraging students to draw on their signature strengths in their everyday lives can help to promote academic achievement, happiness, a sense of self-efficacy, gratitude, and improved school climate. School psychologists are in an ideal position to promote positive psychology within the schools for teachers, administrators, and students. This article provides examples of how signature strengths can be used in schools.