Piaget, Vygotsky and Erick Erickson are considered to be one of the fundamental and accurate psychologists who have presented various theories in regards to the education and lifestyle of human being. Piaget particularly focuses on the early development of children and the hand education has in their proper and complete personality development. Erick focuses on all of the stages of lives of people and how each part has an impact on the one preceding it. Vygotsky was focused more towards the effect which culture has on the children and how it teaches them about the world.