This video is a very good example why some books fail in one week and some books celebrate victory. The idea behind is simple. Timothy Ferriss know that he could not reach the whole world and it was to general. He gathering data by testing a lot at a small groups of fans which made the book a fenomal. With a tight budget of $8000 dollar the book came in de top-5 of Amazon and was a number one hit in the NewYorkTimes. For now you have to do it with the link
