Why "How to be Successful" books write unsucessful people?

Do you know the advertising offering you amazing working techniques "How to be Successful" written by unsuccessful people?

Yea quite paradox some kind of good looking people in borrow suite making amazing gestures talking about known techniques say to you what to do... heh

okey I know everyone want to be famous and successful, but if you want to know my opinion how to do it: be yourself... find your path, your style, and you must know you will have success... not just believe in it... you must know it... and than just your path will be your success!

No matter what!