How do the biological, psychological, and environmental factors during the first three years of life shape human development and inform public policy? Dana Gross, an expert in developmental psychology, synthesizes current research to provide a comprehensive framework for understanding the rapid changes occurring from birth to age three. The text integrates historical context with contemporary findings to illustrate the complex interplay between nature and nurture in early childhood.

This text is regarded as a foundational resource for undergraduate courses in developmental psychology due to its balanced focus on empirical research and real-world application. The inclusion of diverse cultural perspectives and policy implications makes it a standard reference for students seeking to understand the complexities of early childhood development.