This book investigates the ontological and ethical status of mental illness by questioning how we define, categorize, and assign responsibility to disordered states of mind. George Graham, a philosopher specializing in the intersection of mind and psychiatry, utilizes a conceptual framework to bridge the gap between clinical observation and philosophical inquiry. He evaluates the reality of mental disorders, the validity of skepticism regarding psychiatric diagnoses, and the implications of these conditions for human agency and personal identity.

Experts recognize this work as a significant contribution to the philosophy of psychiatry, noting its ability to synthesize complex metaphysical questions with clinical realities. Readers frequently highlight the clarity of the author's prose, which makes dense philosophical arguments accessible to those interested in the intersection of mental health and ethics.