'Grounded in a thorough study of practically the whole of Jung’s published oeuvre as well as an innovative survey of psychology textbooks, Clare Crellin’s book makes a compelling case for the present-day relevance of Jung's personality theory. Crellin not only develops a helpful set of general criteria for evaluating personality theories but also, when applying these criteria to Jung's distinctive model, maintains an assured balance in stressing the scientific character of his thought while not shying away from the integral importance of its religious and alchemical aspects. Scholarly, sensitive, and insightful, this is an important contribution to both Jungian studies and personality psychology.'- Professor Roderick Main, Faculty of Social Sciences, University of Essex, UK‘The distinctive comparative and multi-disciplinary approach of this book makes it invaluable, both to encourage understanding of the relevance of personality theory for contemporary clinical practice, and to re-stimulate critical interest in Jung's work. The book goes beyond Jung's theory alone, to offer a comprehensive framework for evaluating personality theories in general.’ - Professor John Hall, Centre for Health, Medicine and Society, Oxford Brookes University, UK