Mining new research in neuroscience; social, cognitive, and developmental psychology; decision theory; and philosophy, the essays in this volume offer a multi-dimensional, robust examination of self-control. The cutting-edge chapters tackle a wide range of issues, for example: what enables us to resist temptation; the cultural and developmental origins of beliefs about self-control; how attempts at self-control are hindered or helped by emotions; the connections between self-control and moral beliefs; and how the juvenile justice system should be reformed given what we know about juvenile brains.