The 'Shark Tank' investors reveal their investing secrets and most profitable deals

Over the past seven seasons, the "Shark Tank" investors have seen hundreds of pitches from entrepreneurs and invested their own money into the ones that grabbed their attention.

The long hours and countless deals have resulted in the investors developing unique investing styles suited for the show's format, as well as methods for turning their companies into massive successes.

We asked the six Sharks what they prefer to invest in, how they structure their deals, what they look for in entrepreneurs and how they work with them, what their most profitable deals have been, and what they like most about being on the show.

Here's what they had to say.