You might want to reat the book by Theron Q. Dumont "The power of contrentation" you can find it
here
NOTE: I haven't read it, it's still on my "waiting to be read list". So if you don't like it dont blame me
Anyway you can't beat it's price, it's comletely FREE, so you loose nothing(except your time). But I ran through it and it has some very valuable concepts, which you will hopefully find valuable too.