Klein, M., Heimann, P., Isaacs, S. and Rivière, J. 1952 (also in Karnac Maresfield Reprints, 1985.)
This book is a survey of the developments in psychoanalytical knowledge resulting from Klein’s work (published while she was still alive). Her main discoveries relate to the earliest phases of mental life. She recognized that unconscious feeling (‘phantasy’) is the source of all human actions and reactions. Although Freud first enunciated this truth, he left many problems unsolved. These were brought nearer to a solution through Klein’s awareness of the significance of unconscious phantasy.