Investing in SFI is how to do a university degree in marketing and e-commerce . Learning is always good and SFI is even better because it is also profitable. You learn , put into practice their knowledge and get for that . What many people do not understand in the beginning, is that they want to invent the wheel ... and Gary created this, his work on SFI is to put the wheel to rotate ... Do you like challenges? Come to SFI ... you will like it!