This text offers an international perspective on contemporary theory and research in self-perception. It brings together perspectives on individual differences in psychology. Drawing upon an international field of established and contemporary researchers, the work presents both theoretical and applied work looking at individual difference in human performance. The re-appraisal of self-perception is considered as part of the development of current thinking in the theory of self-reference. This includes models of self from the United States and the United Kingdom. The work explores research from around the globe. Not only are studies from Australia, Norway and the United States examined but research from Greece and Kuwait is also explored. Varied topics are covered, including the effects of gender, self-esteem, and pupil self-perception in the academic context. Set within the framework of a conceptual synthesis of the research, the work offers a contemporary review of current thinking in the field.