Michel Foucault's work on freedom, subjectivity, and power is now central to thinking in an extraordinarily wide range of disciplines, including philosophy, history, psychology, politics, anthropology, sociology, and criminology. Michel Foucault: Key Concepts explores Foucault's central ideas, such as disciplinary power, biopower, bodies, spirituality, and practices of the self. Each essay focuses on a specific concept, analyzing its meaning and uses across Foucault's work, highlighting its connection to other concepts, and emphasizing its potential applications. Together, the chapters provide the main coordinates to map Foucault's work.