In fact, it is a method step by step proposed Napoleon Hill, with simple exercises, and requires discipline. But the method has a flaw: it only works if you actually do the exercises! We meet a little weird at times, to do what he says, to write what you want in positive terms, to read it aloud with conviction morning and evening. It feels even ridiculous. Now we have to see the results that come quickly ...
This must be read, regardless of the type of wealth that you continue ...