This book plainly shows the lines along which Jung has developed—lines which, as we believe, lead away from direct appreciation of the actual facts. It consists of a description of Jung's observations on the more modern forms of neurosis, which, as we all find, are continually ousting the older forms. The clinical pictures are observed in all their manifold constructions with psychological acumen; moreover, Jung has worked out a therapeutic method which shows analogies with our ego-analysis. But, on the other hand, in place of the libido-genetic and economic approach, he has evolved conceptions which are expressed in a demonological personification of certain parts of the mind.