The Seven Habits of Highly Effective People, first publishe in 1989, is a self-help book written by Stephen R. Covey. It has sold over 15 million copies in 38 languages since first publication, which was marked by the release of a 15th anniversary edition in 2004. The book lists seven principles that, if established as habits, are supposed to help a person achieve true interdependent effectiveness. Covey argues this is achieved by aligning oneself to what he calls "true north" principles of a character ethic that he believes to be universal and timeless.