[Summary] In “Many Minds, One Self,” Richard Schwartz & Robert Falconer argue that the common belief in a singular mind is an illusion. The book proposes an alternative paradigm, Internal Family Systems (IFS), suggesting that the mind is naturally multiple, composed of sub-personalities or 'parts,' alongside an undamaged core Self. IFS draws evidence from diverse fields, including philosophy, psychology, neuroscience, and complexity theory, to support its claims. The text explores the historical and cultural context of this perspective, examining how the concept of multiplicity has been viewed throughout history and in different therapeutic and spiritual traditions. Ultimately, the book advocates for a shift in understanding towards a more integrated, compassionate perspective that recognizes the inherent multiplicity of the mind and its potential for healing and positive social change.