Book excerpt: The primary purposes of this volume are: 1. To provide mental health practitioners with a current overview of our knowledge about normal parental development during pregnancy and its relation to fetal development, with particular emphasis on the impact of acute and chronic stress on these developmental processes. 2. To provide an understanding of the general state of the field of pregnancy and childbirth care both in conventional health systems and in alternative options. 3. To provide an understanding of models of consultation and liaison that are adapt ed to the special conditions of pregnancy and childbirth care, as contrasted to the more traditional modes that characterize these activities in medical and surgical hospitals. If there prove to be secondary gains as a result of pursuing these goals, so much the better. The most desirable of these would be a heightening of awareness of the mental health needs of "pregnant families" and of the risks they incur in transition from non parenthood to parenthood, and a more effective level of primary and secondary prevention of childhood mental disorders. These latter goals are more global and perhaps even a bit grandiose. Their attainment could only be documented through a series of carefully designed research projects aimed at measuring long-range developmental outcome in children and families who have experienced appropriate and early intervention during the pregnancy period.