They Call Him 'Mr. Wonderful,' but Here's Why Kevin O'Leary Is Good for 'Shark Tank' Entrepreneurs

When the 'Shank Tank' judge tells founders that their products are 'poo poo on a stick,' it's often coming from a good place.

Shark Tank's Kevin O'Leary: This one thing is the key to success in work and love

Kevin O'Leary: If You Can't Fire a Friend, 'You're Not Fit to Be a Leader

Will he or won't he? The Conservatives' Kevin O'Leary factor

Kevin O'Leary's Net Worth: The Rise of Mr. Wonderful, From His Software Company to 'Shark Tank

Kevin O'Leary on Shark Tank - Mr. Wonderful

Kevin O'Leary Is Still Obsessed with Watches. Here's What's in the 'Shark Tank' Star's Collection Right Now.

Wonderful's World - Our Interview With Shark Tank's Kevin O'Leary - Innovation & Tech Today

Shark Tank and Philosophy: Mr. Wonderful and Plato's Pursuit of Truth

Shark Tank's' Kevin O'Leary: Here's how much business school matters

Ask Mr. Wonderful #1 Kevin O'Leary answers your business questions

Mr. Wonderful's Shark Tank Summit - Jamie Ratner

Kevin O'Leary: Worst 'Shark Tank' investment ever lost half a million

Shark Tank's Kevin O'Leary on how to win in business (even if it means firing your mother) - Boston Business Journal

Shark Tank: Kevin O'Leary on why he's Mr. Wonderful

Kevin O'Leary is a blowhard, a relentless self-promoter and, maybe, Canada's future leader