Michael Feldman studied psychology and medicine, and worked for many years in the Psychotherapy Unit at the Maudsley in London. He is now a training analyst of the British Psychoanalytical Society and lectures and supervises clinical work in several centres in Europe and the USA. He has published numerous psychoanalytical papers, and has co-edited, with Elizabeth Spillius, 'Psychic Equilibrium and Psychic Change: Selected Papers of Betty Joseph'