Susan Long is Emeritus Professor and PhD Co-Lead at the National Institute of Organisation Dynamics Australia (NIODA). She has more than four decades experience teaching psychoanalytic and socioanalytic approaches to managers, organisational consultants, organisational psychologists and other professionals.

1. Introduction 2. Schelling - The Beginnings 3. Freud - The Repressed Unconscious 4. Bion - The Infinite Unconscious 5. Lacan - The Unconscious Structured like a Language is Structured 6. The Unconscious in Social Theory 7. The Social Unconscious 8. The Unconscious in Organisations 9. The Unconscious in Neuropsychoanalysis 10. The Unconscious in Nature 11. The Spirit in Things 12. Theories of the Unconscious Revisited in the Light of Spirit