Anyone who attributes a power complex to their boss usually does not know that the idea of complexes originates from C. G. Jung. And even though his concept of archetype has long become commonly used, very few have a clear understanding of what exactly is meant. Particularly in psychology, the variations of terms, according to Jung, often lead to the most persistent misunderstandings. Perhaps that is why he decided to define the central foundational concepts of his psychology himself. This small lexicon of Analytical Psychology explains central terms such as anima, archetype, consciousness, ego, individuation, self, and unconscious. It is intended for anyone who wants a brief yet highly competent overview of the most important concepts of Jungian psychology.