There may have been doubts over whether Sarah Palin could read. But, boy, can she write. Her memoir, Going Rogue, sold 300,000 copies on its first day, making it one of the most successful non-fiction sellers in history. So taken has her publisher HarperCollins been with the enthusiastic reception for Palin's first venture into literature that they have upped the print run from 1.5 million to 2.5 million copies. And that, lest you need further sobering statistics on the new heroine of the world of books, is four times the population of Alaska.