This book documents the early lives of almost 19,000 children born in the UK at the start of the 21st century, and their families. It is the first time that analysis of data from the hugely important Millennium Cohort Study, a longitudinal study following the progress of the children and their families, has been drawn together in a single volume. The unrivalled data is examined here to address important policy and scientific issues.Children of the 21st century is the product of an exciting collaboration from experts across a wide range of health and social science fields. The result is a unique and authoritative analysis of family life and early childhood in the UK that cuts across disciplinary boundaries. It is essential reading for academics, students and researchers in the health and social sciences. It will also be a useful resource for policy makers and practitioners who are interested in childhood, child development, child poverty, child health, childcare and family policy.