The Shared Mind challenges the conventional "theory of mind" approach, proposing that the human mind is fundamentally based on intersubjectivity: the sharing of affective, conative, intentional and cognitive states and processes between a plurality of subjects. The socially shared, intersubjective foundation of the human mind is manifest in the structure of early interaction and communication, imitation, gestural communication and the normative and argumentative nature of language. In this volume, leading researchers from psychology, linguistics, philosophy and primatology offer complementary perspectives on the role of intersubjectivity in the context of human development, comparative cognition and evolution, and language and linguistic theory.