The major theories include important approaches  such as dispositional, perspective and  psychodynamic approaches.

Basic personality theories are cognitive theory, learning theory and biological theory.

The basic personality theories  are external appearance that is the role of heredity and the brain.

The basic personality theories focus on provides knowledge whether a person will do some specific job, in comparison to others.

Personality theory  is considered to be formed as a result of combined hereditary (genetic) and environmental factors.