It would be nice if you started with an introduction thread to tell us more about you. We are more of a community that a drop in and ask a question and then disappear type of place. This forum is a companion and extension to MJ's books The Millionaire Fastlane and Unscripted. Have a read either book?
I don't know what you mean by 'stone trade'
If you read the link below it will give you some ideas of how to search this forum for you answers. Bear in mind there are close to 700,000 posts here so plenty of knowledge for you to soak up.