The 8th Habit: From Effectiveness to Greatness is a book written by Stephen R. Covey, published in 2004.^[1] It is the sequel to The Seven Habits of Highly Effective People, first published in 1989. The book clarifies and reinforces Covey's earlier declaration that "Interdependence is a higher value than independence." This book helps its readers increase the dependence of themselves and others.