Meet the 30 Under 30 Coolest Entrepreneurs

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20 of 30

Adam Witty, Advantage Media Group

Adam Witty had never written a book, let alone published one before he started Advantage Media Group at 23. But his "sell it, then build it" philosophy allowed him to scale the company into a full-service media company. What started from the spare bedroom in his house is now an international media company that sells books in 25,000 bookstores and retailers around the world. Read more.