Abraham Maslow was the influential psychologist who pioneered humanistic psychology. His theory of the hierarchy of needs is foundational in understanding human motivation and personal development. Maslow emphasized the importance of self-actualization and the potential for growth in every individual. His holistic approach to psychology shifted focus from pathology to wellness, highlighting the transformative power of human potential. Maslow's contributions have significantly influenced both psychological practice and education, proving integral in promoting self-awareness and personal development across various fields.