Book excerpt: The first book to capture the debates surrounding Head Start in all their complexity and diversity, this landmark volume will help readers understand the role of these controversies in the program's past and their influence on its future. Two Head Start experts bring together the research and personal experience of leaders in a wide range of fields, including education, research, medicine, and social work. This powerful compilation of voices mines Head Start's history for mistakes made and lessons learned, presents a multifaceted view of where the program should be headed, and offers contrasting viewpoints on three major issues: Goals. Explores different opinions about three ways of thinking about Head Start's goals: cognitive development versus school readiness/social competence, short-term versus long-term progress, and antipoverty tool versus child development program. Effectiveness. Presents views on the impact of Head Start on children's school readiness and success, health, and family functioning -- and discusses how research might be improved so outcomes in these areas can be more meaningfully assessed. Future directions. Explains positions on where Head Start should be headed as it approaches its fifth decade. Opinions are offered on quality improvement, the timing and duration of early intervention, administrative changes, and Head Start's capacity for meeting child care needs and expanding access to preschool services. This comprehensive, forward-thinking book will help readers understand the complexity of Head Start, clarify the multiple sides of the debates that have long surrounded it, and shape effective social policy for America's most at-risk children and their families. Book jacket.