This essay provides a comparative analysis of Freud's psychosexual stages and Erikson's psychosocial stages of development, outlining the key differences and similarities between their theories. It details each stage in both frameworks, from the oral and trust vs. mistrust stages in infancy to the formal operational and identity vs. role confusion stages in adolescence. Additionally, the essay discusses major theories on child development, including psychoanalytic perspective, behaviorism, Piaget’s theory, information processing, ethology, Vygotsky’s sociocultural theory, ecological systems theory, and dynamic systems perspective, highlighting their influence on understanding how children grow and learn. The document also includes Piaget’s Stages of Cognitive Development.