Key insights into birth order help readers understand themselves and improve their marriage, parenting, and career skills.

Birth order has a powerful effect on children's emotional development, on their self-esteem, and on their sense of well-being. The youngest child, the firstborn

Why do people raised in the same families often differ more dramatically in personality than those from different families? What made Charles Darwin, Benjamin F

This study appears at a time when a decisive turn is due in the research on personality development. After many years of stagna tion and misguided research in t