This book investigates the relationship between human agency and the mechanisms of first-person reference and self-knowledge. Lucy O'Brien, a scholar in the field of philosophy, utilizes an analytical framework to examine how our capacity to act informs our understanding of ourselves. She argues that traditional accounts of self-knowledge often overlook the agentive nature of the subject, proposing instead that our knowledge of our own mental and physical actions is inextricably linked to our status as agents.

Experts and academics in the philosophy of mind recognize this work as a significant contribution to the debate on self-knowledge. Readers frequently note the rigorous and dense nature of the prose, which is intended for those with a background in philosophical inquiry.