A friend recommended I try getting a self-esteem self help type book. Has anyone ever used one? Did it help? Can you recommend any titles? What exactly do they tell you to do?

I'm a little skeptical about them because what more can they do besides ask you to list your positive qualities or something, and how is that helpful if you think you have no positive qualities? I'm willing to give it a shot, though, if anyone has advice about what I might seek out.