Erik Erikson was an American psychoanalyst known for his theories on childhood and adolescence, particularly his psychosocial development stages. He proposed that individuals go through eight crucial stages, each involving a psychosocial conflict that must be resolved to develop a healthy personality. Erikson emphasized the significance of social influences on personal growth and identity. His work contributed to understanding human behavior throughout the entire lifespan, including how cultural and societal factors shape development. Erikson’s insights remain foundational in psychology, informing practices in education and mental health today.