This edition includes an Afterword by the translator on the philosophic differences between Carl Jung and Sigmund Freud, a glossary of Freudian Psychological terminology, a timeline of Freud’s life & works and other supplemental materials and illustrations. This is Volume I in the 2023 Complete Works of Sigmund Freud by NL Press. This new translation of Freud's collected works contains works which have never been translated into until now.