There are two major approaches to writing about and teaching human development—the chronological approach (looking at the functioning of all aspects of development at different stages of life, such as infancy or old age) and the topical approach (tracing one aspect of development at a time throughout the life span). This publication takes the chronological approach, which provides a sense of the multifaceted sweep of human development. The reader gets to know first the infant and toddler, then the young child, the schoolchild, the adolescent, the young adult, the adult at midlife, and finally the old person.