The radical and controversial treatise on the practical applications of modern Psychology. "Psychotherapy is the practice of treating the sick by influencing the mental life.

" -Hugo Münsterberg"Succeeds in being at once interesting and instructive. It professes to elucidate the relations of psychology to medicine, and this, not with the idea of stirring up interest, but rather of bringing an already present interest from mere gossip, vague mysticism, and medical amateurishness to a clear understanding of principles.

" -The Journal of Abnormal Psychology, Volume 5, 1910"A new and urgently needed contribution to the science of curing mental and bodily disorders through influence on the mind. .

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There had been too much misguided curiosity on the part of the public, too much dabbling in psychological half-knowledge and, on the part of the physicians, too much ignorance of the curative virtues of psychological treatment. In the interest of physicians who needed information, not from a psychiatrist but from an experimental psychologist, and in the interest of the public groping among the mists of indefinite conceptions, there was needed such a book.

Accordingly, as soon as it was published, it was devoured by hungry readers. " -Margarete Anna Adelheid Münsterberg, "Hugo Münsterberg: His Life and Work".