When Lev Vygotsky: Revolutionary Scientist published, it was unique in several ways. It presented Vygotsky as a Marxist methodologist, both locating him in his historical period and delineating how his life and writings have been a catalyst for a contemporary revolutionary, practical-critical, psychology. It highlighted Vygotsky's unconventional view of how development and learning are related and, in doing so, brought human development into prominence. It introduced important linkages between Vygotsky's views on thinking and speaking and those of Wittgenstein, drawing implications...