PENELOPE LEACH was educated at Cambridge University and at the London School of Economics, where she received her Ph.D. in psychology, after which she studied many aspects of child development and child rearing under the auspices of Britain's Medical Research Council. A Fellow of the British Psychological Society and a founding member of the U.K. branch of the World Association for Infant Mental Health, she works on both sides of the Atlantic in various capacities for organizations concerned with prenatal care and birth, family-friendly working practices, day care, and early years education. She has recently co-directed a major program of research in the United Kingdom into the effects of various forms and combinations of care on children's development from birth to school age. Penelope Leach has two children and six grandchildren and lives in Lewes, England.