This book’s two primary objectives are to present theory and research on the role of learners’ achievement-related perceptions in educational contexts and to discuss the implications of this research for educational practices. Although contributors share the view that students’ perceptions exert important effects in achievement settings, they differ in diverse ways including their theoretical orientation, their choice of research methodology, the perceptions they believe are of primary importance, and the antecedents and consequences of these perceptions. They discuss the current status of their ideas and provide a forward look at research and practice.