Table of contents : Introduction. Life and Early Work. Marx, Hegel, Piaget and Other Influences. The Child, the Levels and Consciousness, 1928 - 1931. Motivation and Other Topics 1928 - 1931. The Child, the Levels and Consciousness, 1932 - 1934. Motivation and Other Topics, 1932 - 1934. Method. Evaluation. Understanding, Revising and Extending the Theory. Vygotsky and Education. Conclusions.