Use the internet or your local library to explore the work of key psychologists e.g. Behaviour theories: John B Watson, B F Skinner Cognitive theories: Jean Piaget Developmental theories: Sigmund Freud, Erik Erikson, Lawrence Kohlberg, Jean Piaget, Albert Bandura, Margaret Donaldson, John Bowlby Humanist theories: Abraham Maslov, Carl Rogers Personality theories: Carl Jung, Jean Piaget, Henry Murray, Hans Eysenck