First published in 1900 it provides a groundbreaking theory of dreams and an innovative method for interpreting them that captivates readers to this day. The book represents Freud’s first major attempt to set out his theory of a dynamic unconscious created in childhood which operates continuously in every human mind. For Freud dreaming is a mental activity that follows its own logic. By identifying its mechanisms Freud also shed new light on the workings of the unconscious and its powerful role in human life.