Wilhelm Stekel was an Austrian physician and psychologist and one of Freud's earliest followers. A prolific writer, this book originally published in 1921, was considered by the translator 'the best general introduction of its author to the English public', containing as is does many of his central ideas. Although the author had already fallen out with him by this time, in the preface to this book, he acknowledges Freud's significance to the field and says he regards his 'Psycho-Analysis as being a step towards a new psycho-therapy'.