Go anywhere in the world today and you'll see or hear English in some form. It may not necessarily be the Queen's English that you're hearing, but it is, nevertheless, a form of universally recognised English - it is Globish. In his wonderfully witty and informative new book, Robert McCrum explores the curious history, vivacity and endurance of English and ponders why, while British and American empires have waxed and waned, the English language, freer from its moorings like never before, has quietly taken over the world.