This volume investigates the complex interplay of cognitive, affective, and motivational mechanisms that enable individuals to control their thoughts, emotions, and behaviors. The authors, led by prominent social psychologist Roy F. Baumeister, synthesize decades of experimental research to propose a comprehensive framework for understanding how human beings regulate their internal states. By examining the limits of willpower and the influence of environmental cues, the text argues that self-regulation is a finite resource that dictates success in social and personal domains.

Experts recognize this work as a foundational text for understanding the mechanisms of human willpower and behavioral control. Readers frequently note the academic density of the prose, which makes it a primary resource for students and researchers in the field of social psychology.