Carl Gustav Jung (1875-1961) was a Swiss psychiatrist and psychoanalyst who founded analytical psychology. He is best known for his theories of the collective unconscious, archetypes, and the process of individuation. Jung's work has had a profound influence on modern psychology, and his ideas have been applied to fields such as literature, art, and religion. He was also a prolific writer, publishing over 20 books and numerous articles. Jung's theories have been widely accepted and continue to be studied and discussed today. He is considered one of the most influential figures in the history of psychology.