Modern Man in Search of a Soul by Carl Jung

Freud's "The Future of an Illusion" and "Group Psychology and the Analysis of the Ego" are short and worth a look. They felt derivative though; it was like I was reading Nietzsche or Schopenhauer rehashed several years too late. I can't speak to his other works. Jung has been on my list and I think I'd have a greater affinity for him.