Boundaries of the Soul, June Singer's classic is billed as 'the very best introduction to Jung around' by such thinkers as Joseph Campbell. Over a hundred thousand copies are now in print since its publication twenty years ago. In this completely revised and updated edition, Dr. Singer incorporates the latest developments in Jungian Psychology over the last two decades, particularly in the areas of masculine/feminine relationships, the use of psychotherapeutic drugs, and the evolution of Jung's concepts and personality types and its application both clinically and in the world of business and industry. Jung is one of the most influential psychologists, historically, and particularly important to Christians as he was the first psychologist to take religion seriously--this is not to say he was a Christian, but that his ideas are often used by Christians and to make sense of Christians.