C. Harry Brooks' "The Practice of Autosuggestion" is a study on mental health. In America, the home of so many systems of mental healing, it is perhaps even more necessary than in Europe to insist on the distinctive features of M. Coué's teaching. It is based, not on transcendental or mystical postulates, but the simple and acknowledged facts of psychology. This does not mean that it has no relation to religion. On the contrary, it has a very close one. Indeed I hope in a future volume to point out its deep significance for the Christian churches. But that relationship remains in M. Coué's teaching unexpressed. The powers he has revealed are part of the natural endowment of the human mind. Therefore they are available to all men, independently of adherence or non-adherence to any sect or creed.