Upgrade, 4 out of 5 star rating from Success Magazine. For this book, Rana Florida, CEO of the Creative Class Group and a columnist for The Huffington Post, interviewed impressive friends, acquaintances and colleagues, including Daniel Pink, author of To Sell Is Human; Zaha Hadid, an architect and one of Forbes magazine’s World’s 100 Most Powerful Women; John Noseworthy, M.D., CEO of the Mayo Clinic; chef Mario Batali; and singer Nelly Furtado.