adwords and adsense

Just read a thread on BHW about a guy pulling $500,000 per day - someone comented about his invetment of $80,000 per day via adwords.

Could someone explain about how to invest in adwords and make money from the investment.

If it was that simple to explain everyone would be doing it.

Basically you find a good converting offer. Test it with adwords and make sure your return on investment is good. Scale it up.
Adwords is not a game for newbies. It requires lot of testing. And nobody is going to share their successful campaigns with others.

Was not asking for holy grail of Black Hat Marketing - just how it works - buy adwords to make $$.