This book consists of previously unpublished manuscripts by Vygotsky found in the first systematic study of Vygotsky's family archive. The notebooks and scientific diaries gathered in this volume represent all periods of Vygotsky's scientific life, beginning with the earliest manuscript, entitled The tragicomedy of strivings (1912), and ending with his last note, entitled Pro domo sua (1934), written shortly before his death. The notes reveal unknown aspects of the eminent psychologist's personality, show his aspirations and interests, and allow us to gain insights into the development of his...