I have been thinking on this. Right now, I'm going to use it mostly to deal with my coworkers and my boss. Definitely, I'll step into serious business in the future; but for now, Max Persuasion is overkilled to me; it will be great when I step into real state. I ordered two books on NLP from Amazon and I'm going to give some cheaper package a try, maybe the Extreme Power one. Yet I need to decide which package I will be studying.