No one has influenced our understanding of culture and value systems as much as Clare W. Graves, US American professor of social psychology and originator of the emergent theory of human development. His relevance to the field of consulting and organizational development is indisputable. However, only few authors have dealt with Gravess original data. This book is the worldwide first summary of Gravess original studies, audiotapes, and notes, as well as a complete biography and comprehensive explanation of its scientific relevance in regard to human development. Rainer Krumm and Benedikt Parstorfers intent is to spread the knowledge and wisdom of Graves and his extensive studies and offer the interested reader a thorough understanding of his original work and various applications.