Felix Dennis is a billionaire. “He owns Stuff magazine. He owns The Week. His Maxim, where the staff calls their proprietor “the bearded dwarf,” is the biggest-selling “men’s lifestyle” publication in the world. His privately owned company, Dennis Publishing, has launched more than 40 magazines, typically with prosaic but profitable prescience: Computer Shopper used to carry more than 1,000 pages of advertisements in each issue. Now Dennis, 57, has decided to become a poet…”