The seven papers in this issue address a variety of challenges that parents in several different cultural places encounter as they do their best to ensure their children's safe, happy, and successful development from infancy through middle childhood: infant sleep, developmental agendas, temperament, preschools, academic success, and learning to be a parent in a new cultural environment. The authors use a varied of methods -- qualitative and quantitative -- to understand how parental figures in Botswana, China, Italy, the Netherlands, Poland, Spain, Sweden and the United States think about the needs of their children, their own role as parents, and the caretaking practices that follow. A final Commentary focuses on the power of parental ethnotheories in changing societies, and on the complexities and importance of cross-cultural research.