In Voices of the Mind, James Wertsch outlines an approach to mental functioning that stresses its inherent cultural, historical, and institutional context. A critical aspect of this approach is the cultural tools or “mediational means” that shape both social and individual processes. In considering how these mediational means—in particular, language—emerge in social history and the role they play in organizing the settings in which human beings are socialized, Wertsch achieves fresh insights into essential areas of human mental functioning that are typically unexplored or misunderstood.

Although Wertsch’s discussion draws on the work of a variety of scholars in the social sciences and the humanities, the writings of two Soviet theorists, L. S. Vygotsky (1896–1934) and Mikhail Bakhtin (1895–1975), are of particular significance. Voices of the Mind breaks new ground in reviewing and integrating some of their major theoretical ideas and in demonstrating how these ideas can be extended to address a series of contemporary issues in psychology and related fields.

A case in point is Wertsch’s analysis of “voice,” which exemplifies the collaborative nature of his effort. Although some have viewed abstract linguistic entities, such as isolated words and sentences, as the mechanism shaping human thought, Wertsch turns to Bakhtin, who demonstrated the need to analyze speech in terms of how it “appropriates” the voices of others in concrete sociocultural settings. These appropriated voices may be those of specific speakers, such as one’s parents, or they may take the form of “social languages” characteristic of a category of speakers, such as an ethnic or national community. Speaking and thinking thus involve the inherent process of “ventriloquating” through the voices of other socioculturally situated speakers. Voices of the Mind attempts to build upon this theoretical foundation, persuasively arguing for the essential bond between cognition and culture.

In a book of intellectual breadth, James Wertsch not only offers a synthesis and critique of all Vygotsky’s major ideas, but also presents a program for using Vygotskian theory as a guide to contemporary research in the social sciences and humanities. He draws extensively on all Vygotsky’s works, both in Russian and in English, as well as on his own studies in the Soviet Union with colleagues and students of Vygotsky.

Vygotsky’s writings are an enormously rich source of ideas for those who seek an account of the mind as it relates to the social and physical world. Wertsch explores three central themes that run through Vygotsky’s work: his insistence on using genetic, or developmental, analysis; his claim that higher mental functioning in the individual has social origins; and his beliefs about the role of tools and signs in human social and psychological activity Wertsch demonstrates how the notion of semiotic mediation is essential to understanding Vygotsky’s unique contribution to the study of human consciousness.

In the last four chapters Wertsch extends Vygotsky’s claims in light of recent research in linguistics, semiotics, and literary theory. The focus on semiotic phenomena, especially human language, enables him to integrate findings from the wide variety of disciplines with which Vygotsky was concerned Wertsch shows how Vygotsky’s approach provides a principled way to link the various strands of human science that seem more isolated than ever today.