I'm sure you think you know him. He's everywhere: on that TV show; courtside; making headlines for saying something, er, colorful; tweeting to his 2.3 million followers.

I thought I knew Mark Cuban, too. When someone's got a mouth like his, it's hard to imagine that there's much mystery left or that anything is saved for close company. But in fact, Cuban surprisingly leaves a lot off the table and, like any good showman, tells you just enough to leave you wanting more.

He's worth billions ($2.6 billion, in fact), which you probably did know. He's owner of the Dallas Mavericks, Magnolia Pictures and Landmark Theaters, star of ABC's investor competition show "Shark Tank" and chairman of HDTV network AXS TV and sold his first company, MicroSolutions, for $6 million. His next, broadcast.com, was bought by Yahoo for $5.7 billion.

But you probably knew most of that, too. Because he's told you all about it. Full story