Aldous Huxley
Aldous Huxley, one of the great modern thinkers, philosophers, and social commentators of the 20th century, is often hailed as an inspirational figure of the Human Potential Movement and the subsequent development of transpersonal psychology.

William James
For William James, psychology was bounded by biology on one side and philosophy on the other; it addressed all areas of human experience. James helped introduce psychology to the United States, teaching the first course and establishing the first laboratory.

Carl Jung
Carl Jung is one of the most important, most complex, and most controversial psychological theorists. Jungian psychology focuses on establishing and fostering the relationship between conscious and unconscious processes.

Abraham Maslow
Abraham Maslow is one of the founders of humanistic psychology and transpersonal psychology. He believed that an accurate and viable theory of personality must include not only the depths but also the heights that each individual is capable of attaining.

Carl Rogers
Carl Rogers was a founder of humanistic psychology whose contributions continue to resonate throughout the field. His theory and practice shifted the authoritarian paradigm of therapist-led psychotherapy toward a client-centered practice