Lev Vygotsky, known as the "Mozart of Psychology", was one of the most influential psychologists from Soviet Russia. Vygotsky's genius swept a wide range of problems in psychology and education in his brilliant but short career. Vygotsky provided deep and unique insights to a variety of problems in both pedagogy and psychology. His theories have influenced a variety of fields and given a socio-cultural lens to researchers. This book traces the thought process of building of his system of psychology: the ideas and authors who influenced him along with newly formed Soviet society on his work and worldview. Each of the chapters thematically discusses various dimensions of his wide ranging work and is a scientific biographical overview of his life and work. This is a completely electronic version typeset using LaTeX from a 1989 scan. This version is released on the web by http://mirtitles.orgThe LaTeX source files for the project can be found at https://gitlab.com/mirtitles/vygotsky