Introduction (Giuseppe Craparo, Francesca Ortu, and Onno van der Hart); 1. A Reader's Guide To Pierre Janet: A Neglected Intellectual Heritage (Onno van der Hart and Barbara Friedman); 2. From Consciousness to Subconsciousness. A Janetian Perspective (Francesca Ortu and Giuseppe Craparo); Part I: Janet's Influence on Psychoanalysis; 3. Janet and Freud: Long-Time Rivals (Gabriele Cassullo); 4. Janet and Jung: A Stimulating Relationship (Caterina Vezzoli); 5. On Not Taking Just One Part of It: Janet's Influence on Object Relations Theory (Gabriele Cassullo); 6. From Janet to Bromberg, via Ferenczi: Standing in the Spaces of the Literature on Dissociation (Clara Mucci, Giuseppe Craparo, and Vittorio Lingiardi); Part II: Janet's Influence on Contemporary Psychotraumatology; 7. Reflections on Some Contributions to Contemporary Psychotraumatology in the Light of Janet's Critique of Freud's Theories (Giovanni Liotti and Marianna Liotti); 8. The Holistic Project of Pierre Janet. Part One: Disintegration or Désagrégation (Russell Meares and Cécile Barral); 9. The Holistic Project of Pierre Janet. Part Two: Oscillations and Becomings: From Disintegration to Integration (Cécile Barral and Russell Meares); 10. Pierre Janet on Hallucinations, Paranoia, and Schizophrenia (Andrew Moskowitz, Gerhard Heim, Isabelle Saillot, and Vanessa Beavan); Part III: Janet's Influence on Current Psychotherapy; 11. The Hypnotherapeutic Relationship with Traumatized Patients: Pierre Janet's Contributions to Current Treatment (Kathy Steele and Onno van der Hart); 12. Pierre Janet's Treatment of Posttraumatic Stress (Onno van der Hart, Paul Brown, and Bessel A. van der Kolk); 13. Pierre Janet's Views on the Etiology, Pathogenesis, and Therapy Dissociative Disorders (Gerhard Heim and Karl-Ernst Buhler); 14. Striving for Acts of Triumph in Sensorimotor Psychotherapy (Pat Ogden); Epilogue: Dissociation in the DSM-5: Your View, S'Il Vous Plaît, Docteur Janet? (Ellert R. S. Nijenhuis)