Donald Woods Winnicott (1896-1971) was one of Britain's leading psychoanalysts and paediatricians. The author of some of the most enduring theories of the child and of child analysis, he coined terms such as the "good enough mother" and the "transitional object" (known to most as the security blanket). Winnicott's work is still used today by child and family therapists, social workers, teachers, and psychologists, and his papers and clinical observations are routinely studied by trainees in psychoanalysis, psychiatry, and clinical psychology. Winnicott also wrote for parents, teachers, social...