This is the second edition of the best-selling guidebook for all those who care for pregnant women and their babies, and for expectant parents. The book is based on a systematic review of more than 7000 of the best clinical research studies and classifies all the interventions as effective, promising, not proven either way, or not worth using. This new edition has been extensively revised and up dated, incorporating the results of the important evidence about the effects of care during pregnancy and childbirth that has accumulated since the first edition was published. The first edition received huge critical acclaim and immediately became established as the `bible' for all members of the perinatal care team. This second edition continues that tradition and will be the standard practical guide for years to come. This book is intended for midwives, expectant parents, obstetricians, GPs, childbirth educators.