"Collected Writings" is a series of collections of significant writings and studies by the Austrian neurologist, depth psychologist, cultural theorist, and critic of religion, Prof. Dr. Sigmund Freud (1856 - 1939). Freud is considered the founder of psychoanalysis, through which he gained worldwide recognition. He was one of the most influential thinkers of the 20th century, whose theories and methods are still widely discussed today. The present third volume of the collected writings includes the essays: "Additions and Supplementary Chapters to the Interpretation of Dreams," "On Dreams," "Contributions to Dream Theory," and "Contributions to the Vienna Discussions." The Publishing House of Sciences publishes historical literature by well-known and lesser-known scientific authors, thereby making works that have long been out of print accessible to interested readers.