Symbiosis and Ambiguity is the first English edition of José Bleger¿s study of early object relations. It is rooted in Kleinian clinical thinking, and in work by Argentinian analysts.

Etchegoyen , Preface. Bleger, Churcher, Editorial Introduction. Prologue. Part I: On Symbiosis . Study of Dependence-Independence in Relation to the Process of Projection-Introjection. Symbiosis in Warrior¿s Rest. Modalities of Object Relations. Study of the Psychotic Part of the Personality. Part II: On Ambiguity . Ambiguity in Psychoanalytic Clinical Work. Psychoanalysis of The Psychoanalytic Setting. Part III: Appendix . Ambivalence and Ambiguity: The Background Literature. Commentary on `The Antithetical Meaning of Primal Words'. Ambiguity and Syncretism in Freud¿s `The Uncanny¿.

José Bleger was born in Argentina in 1922. An active member of the Asociación Psicoanalítica Argentina, he was also a highly-regarded Professor of Psychology and a well known intellectual. Author of many books and papers, his reputation grew steadily after his early death in 1972. He is now considered a major figure of Argentinian psychoanalysis.

John Churcher is a psychoanalyst in private practice in Manchester, and a member of the British Psychoanalytical Society. Until 2002 he was a Lecturer in Psychology at the University of Manchester.

Leopoldo Bleger, born in Argentina, has lived in Paris since 1976. A Training Analyst of the Association Psychanalytique de France, he is currently General Secretary of the European Federation of Psychoanalysis.