He has devoted his career to the study of what makes experts in their field different than everyone else. He is known as the “Expert expert”. In all of his studies, he has found that what makes the elite truly great is not innate, natural talent, but rather how they practice and sharpen their skills. Specifically, elite performers engage in a particular type of practice, what Ericsson terms deliberate practice. Deliberate practice involves identifying weaknesses, then engaging in repetitive drills to improve those weaknesses. Often deliberate practice involves a coach or mentor who can provide feedback for quick correction. Ericsson also found of elite performers that they practiced deliberately significantly more than others.