Personality is a pattern of stable states and characteristics of a person that influences his or her behaviour toward goal achievement. There are four theories of personality: psychoanalytic theory, type theories, trait theories, self theory.
The word personality is derived from a Greek word “persona” which means “to speak through.” Personality is the combination of characteristics or qualities that forms a person’s unique identity. It signifies the role which a person plays in public.
A field of study that investigates the impact of individuals, groups and structures on behaviour within organisations for the purpose of applying such knowledge towards improving an Organisation's effectiveness.