The publishers of the present book deserve credit for presenting to the reading public the gist of Freud’s psychology in the master’s own words, and in a form which shall neither discourage beginners, nor appear too elementary to those who are more advanced in psychoanalytic study. Dream psychology is the key to Freud’s works and to all modern psychology. With a simple, compact manual such as Dream Psychology there shall be no longer any excuse for ignorance of the most revolutionary psychological system of modern times.

(From the book introduction, by Andre Tridon)