I judge personal mveelopdent books by whether they resonate with me and speak to my experience. Covey's 7 Habits is a great book if you choose to make it a way of life. His book The 8th Habit is even better.I think the Law of Attraction has some validity, but it doesn't guide me as to how I wish to be in the world, which I thnk is the power of Covey's writing. Timing is also a big factor in whether or not a personal mveelopdent approach works for a person. I read the 7 Habits at the right time..