I bought Resiliency as part of the warehouse clearance super-special LSC had in November 2008. I have not used it yet (lazy me.... LOL... another upper limit!). I came across the author through some of the CD's by Bill Harris. I was fascinated by the concept, but never bought books by Al Siebert. Because of the deeply discounted price, I bought the course, which also has a couple of Paraliminal sessions, which do help in the learning process. I believe I am a resilient person by nature as I seem never to give up. However, refining a natural skill is helpful to reach new heights in life.